This is a table of type bigram and their frequencies. Use it to search & browse the list to learn more about your study carrel.
| bigram | frequency |
|---|---|
| precious stones | 242 |
| specific gravity | 105 |
| act ii | 39 |
| corundum gems | 37 |
| mineral species | 33 |
| doubly refracting | 30 |
| act iii | 30 |
| first folio | 29 |
| new york | 28 |
| see chapter | 27 |
| double refraction | 27 |
| precious stone | 26 |
| cut stones | 25 |
| crystalline structure | 22 |
| physical properties | 21 |
| true topaz | 20 |
| cut stone | 18 |
| united states | 18 |
| sometimes called | 18 |
| per cent | 17 |
| scientific stones | 17 |
| refractive index | 16 |
| singly refracting | 16 |
| act iv | 16 |
| colored stones | 15 |
| demantoid garnet | 15 |
| gem minerals | 15 |
| see also | 14 |
| chapter viii | 14 |
| glass imitations | 13 |
| artificial light | 13 |
| right angles | 13 |
| henry vi | 13 |
| chapter vii | 13 |
| lapis lazuli | 13 |
| green stones | 13 |
| cabochon cut | 12 |
| metric carat | 12 |
| quartz gems | 12 |
| rough material | 12 |
| white sapphire | 12 |
| red stones | 12 |
| many different | 11 |
| south africa | 11 |
| almost always | 11 |
| cleavage planes | 11 |
| certain stones | 11 |
| let us | 10 |
| cinnamon stone | 10 |
| specific gravities | 10 |
| stones will | 10 |
| gem material | 10 |
| chemical composition | 10 |
| anne hathaway | 10 |
| fine pearls | 10 |
| coloured stones | 9 |
| per carat | 9 |
| metric carats | 9 |
| even though | 9 |
| precious topaz | 9 |
| gem merchant | 9 |
| gem materials | 9 |
| true emerald | 9 |
| one may | 9 |
| high prices | 9 |
| different colors | 9 |
| many cases | 8 |
| red corundum | 8 |
| many fine | 8 |
| blue stones | 8 |
| step cut | 8 |
| various colors | 8 |
| dispersive power | 8 |
| adamantine luster | 8 |
| imitation stones | 8 |
| cubic system | 8 |
| gives us | 8 |
| diamond dust | 8 |
| totally reflected | 8 |
| metallic oxides | 8 |
| oriental amethyst | 7 |
| price per | 7 |
| well known | 7 |
| per grain | 7 |
| certain directions | 7 |
| colorless stones | 7 |
| called olivine | 7 |
| oriental emerald | 7 |
| merry wives | 7 |
| stones may | 7 |
| citrine quartz | 7 |
| passionate pilgrim | 7 |
| rough precious | 7 |
| stone may | 7 |
| square hole | 7 |
| file test | 7 |
| south america | 7 |
| cullinan diamond | 7 |
| knife edges | 7 |
| will scratch | 7 |
| stones whose | 7 |
| oriental topaz | 7 |
| two gentlemen | 7 |
| much less | 7 |
| see fig | 7 |
| orient pearl | 7 |
| brilliant cut | 7 |
| yellow quartz | 7 |
| trained eye | 7 |
| ural mountains | 7 |
| red color | 7 |
| properly cut | 6 |
| true ruby | 6 |
| top surface | 6 |
| grain base | 6 |
| rose cut | 6 |
| usually found | 6 |
| real emerald | 6 |
| brown stones | 6 |
| quartz topaz | 6 |
| internal structure | 6 |
| emerald green | 6 |
| color alone | 6 |
| titus andronicus | 6 |
| great value | 6 |
| south african | 6 |
| will serve | 6 |
| natural stone | 6 |
| ordinary ray | 6 |
| one half | 6 |
| surface finish | 6 |
| cornflower blue | 6 |
| refractive indices | 6 |
| marked dichroism | 6 |
| two images | 6 |
| whose specific | 6 |
| white topaz | 6 |
| finished stone | 6 |
| strongly doubly | 6 |
| fine specimens | 6 |
| optical properties | 6 |
| green glass | 6 |
| water will | 6 |
| small stones | 6 |
| less hard | 6 |
| takes place | 6 |
| one side | 6 |
| red stone | 6 |
| natural stones | 6 |
| white light | 6 |
| various types | 6 |
| yellow stones | 6 |
| skill facets | 6 |
| cultured pearl | 6 |
| cultured pearls | 6 |
| three axes | 6 |
| may also | 6 |
| ii henry | 6 |
| blue sapphire | 6 |
| single refraction | 6 |
| henry iv | 6 |
| blue color | 6 |
| vitreous luster | 6 |
| upper surface | 6 |
| fire opal | 6 |
| one another | 6 |
| incorrectly called | 5 |
| must next | 5 |
| now consider | 5 |
| will find | 5 |
| scientific ruby | 5 |
| many varieties | 5 |
| thin layers | 5 |
| east indian | 5 |
| much like | 5 |
| surface luster | 5 |
| gravity lies | 5 |
| pronounced cleavage | 5 |
| last chapter | 5 |
| pyrope garnets | 5 |
| yellow color | 5 |
| twelfth night | 5 |
| precious opal | 5 |
| public library | 5 |
| considerable number | 5 |
| richard iii | 5 |
| usually called | 5 |
| highly valued | 5 |
| lesson xviii | 5 |
| north america | 5 |
| will therefore | 5 |
| purple stones | 5 |
| vitreous lustre | 5 |
| case may | 5 |
| one direction | 5 |
| third folio | 5 |
| pinked topaz | 5 |
| lesson iii | 5 |
| fine gem | 5 |
| yellow beryl | 5 |
| sharp edges | 5 |
| ruby spinel | 5 |
| refractive power | 5 |
| hessonite garnet | 5 |
| lustre stones | 5 |
| indestructible pearls | 5 |
| balas ruby | 5 |
| cross facets | 5 |
| paste imitations | 5 |
| english translation | 5 |
| scientific rubies | 5 |
| iceland spar | 5 |
| pink stones | 5 |
| alumina garnet | 5 |
| blood red | 5 |
| top angle | 5 |
| card method | 5 |
| refracting stones | 5 |
| well cut | 5 |
| ring stone | 5 |
| pyrope garnet | 5 |
| stones mentioned | 5 |
| chapter iv | 5 |
| fine blue | 5 |
| high dispersive | 5 |
| naked eye | 5 |
| next consider | 5 |
| olive green | 5 |
| real gem | 5 |
| will float | 5 |
| transmitted light | 5 |
| spanish topaz | 5 |
| made use | 5 |
| richard ii | 5 |
| fancy diamonds | 5 |
| true pearl | 5 |
| make use | 5 |
| high price | 5 |
| methylene iodide | 5 |
| one stone | 5 |
| will sink | 4 |
| small number | 4 |
| several times | 4 |
| green color | 4 |
| spinel ruby | 4 |
| extraordinary ray | 4 |
| wave lengths | 4 |
| entirely different | 4 |
| two elements | 4 |
| also sometimes | 4 |
| two squares | 4 |
| diamond mines | 4 |
| rainbow colors | 4 |
| ad valorem | 4 |
| true hyacinth | 4 |
| table diamond | 4 |
| gravity number | 4 |
| yellow zircon | 4 |
| us consider | 4 |
| fine ones | 4 |
| pink beryl | 4 |
| gravity bottle | 4 |
| widely separated | 4 |
| genuine stone | 4 |
| wearing qualities | 4 |
| gravity determinations | 4 |
| pure white | 4 |
| silicon oxide | 4 |
| martin droeshout | 4 |
| natural history | 4 |
| small portion | 4 |
| two stones | 4 |
| double images | 4 |
| sio al | 4 |
| diamond cutting | 4 |
| unaided eye | 4 |
| new south | 4 |
| strong light | 4 |
| different stones | 4 |
| crystals may | 4 |
| pink tourmaline | 4 |
| metallic minerals | 4 |
| ready means | 4 |
| gently heated | 4 |
| rose quartz | 4 |
| unknown gems | 4 |
| frequently found | 4 |
| certain gems | 4 |
| general use | 4 |
| fairly good | 4 |
| coral lips | 4 |
| glass imitation | 4 |
| whitened zircon | 4 |
| round cabochon | 4 |
| back facets | 4 |
| may now | 4 |
| distinguishing precious | 4 |
| rear facets | 4 |
| will appear | 4 |
| original stone | 4 |
| may easily | 4 |
| give us | 4 |
| one way | 4 |
| will make | 4 |
| seventeenth century | 4 |
| flat base | 4 |
| artificial material | 4 |
| will soon | 4 |
| long time | 4 |
| north carolina | 4 |
| greenish cast | 4 |
| known specific | 4 |
| best known | 4 |
| york public | 4 |
| tells us | 4 |
| cape ruby | 4 |
| great britain | 4 |
| color stones | 4 |
| green stone | 4 |
| different specimens | 4 |
| african mines | 4 |
| ruby lips | 4 |
| almandite garnet | 4 |
| net dirs | 4 |
| large stones | 4 |
| pearl grain | 4 |
| yellow chrysoberyl | 4 |
| mixed cut | 4 |
| nd edition | 4 |
| fine green | 4 |
| best results | 4 |
| comes mainly | 4 |
| smoky quartz | 4 |
| garnet top | 4 |
| rock crystal | 4 |
| de la | 4 |
| brilliant form | 4 |
| fine emerald | 4 |
| natural corundum | 4 |
| may produce | 4 |
| see gem | 4 |
| will also | 4 |
| alumina garnets | 4 |
| hessonite garnets | 4 |
| test stone | 4 |
| direct sunlight | 4 |
| brownish red | 4 |
| blue ground | 4 |
| brooch stones | 4 |
| almost every | 4 |
| green sapphire | 4 |
| real stone | 4 |
| years ago | 4 |
| indian mines | 4 |
| hued sapphire | 4 |
| natural gems | 4 |
| wine yellow | 4 |
| deep red | 4 |
| closely resembles | 4 |
| many gem | 4 |
| several different | 4 |
| now come | 4 |
| fresh water | 4 |
| constitutes good | 4 |
| stones possess | 4 |
| optical axis | 4 |
| fine color | 4 |
| name implies | 4 |
| card test | 4 |
| chapter vi | 4 |
| south wales | 4 |
| will isolate | 4 |
| file will | 4 |
| gem dealer | 4 |
| blue diamonds | 4 |
| successive layers | 4 |
| much ado | 4 |
| york city | 4 |
| exhibit dichroism | 4 |
| correctly named | 4 |
| two varieties | 4 |
| natural ones | 4 |
| quartz crystal | 4 |
| eye stones | 4 |
| lesson ii | 4 |
| yellowish green | 4 |
| gem dealers | 4 |
| en cabochon | 4 |
| various precious | 4 |
| softer materials | 4 |
| valuable stone | 4 |
| corundum gem | 4 |
| electric influences | 4 |
| atmospheric air | 4 |
| fairly hard | 4 |
| one will | 4 |
| natural ruby | 4 |
| great beauty | 4 |
| translucent stones | 4 |
| tariff laws | 4 |
| called also | 4 |
| organic matter | 4 |
| never equal | 4 |
| colouring matter | 4 |
| total reflection | 4 |
| good make | 4 |
| calcium carbonate | 4 |
| many years | 4 |
| step cutting | 4 |
| thousand ships | 4 |
| green variety | 3 |
| history records | 3 |
| white card | 3 |
| john mastin | 3 |
| chatoyant stones | 3 |
| market value | 3 |
| detailed account | 3 |
| sickly radiance | 3 |
| twin colors | 3 |
| various gems | 3 |
| carats weight | 3 |
| exactly like | 3 |
| per centum | 3 |
| lead glass | 3 |
| native cut | 3 |
| green emerald | 3 |
| quite opaque | 3 |
| opposite side | 3 |
| spurious stones | 3 |
| beaded jet | 3 |
| grass green | 3 |
| small ones | 3 |
| intrinsic color | 3 |
| pearl buyer | 3 |
| different degrees | 3 |
| sometimes sold | 3 |
| natural rubies | 3 |
| knife blade | 3 |
| cut diamond | 3 |
| pure substance | 3 |
| cinnamon stones | 3 |
| sidney lee | 3 |
| parts thereof | 3 |
| small crystal | 3 |
| two years | 3 |
| whilst others | 3 |
| make sure | 3 |
| water displaced | 3 |
| chapter xii | 3 |
| rich velvety | 3 |
| much heavier | 3 |
| first place | 3 |
| natural defects | 3 |
| stones lose | 3 |
| charles ix | 3 |
| pigeon blood | 3 |
| pink sapphire | 3 |
| particular color | 3 |
| long list | 3 |
| chapter iii | 3 |
| air bubbles | 3 |
| less attractive | 3 |
| great cullinan | 3 |
| crystalline form | 3 |
| recent years | 3 |
| polishing diamonds | 3 |
| gem gravels | 3 |
| light passes | 3 |
| great mogul | 3 |
| careful examination | 3 |
| usual round | 3 |
| various stones | 3 |
| george frederick | 3 |
| great demand | 3 |
| lack variety | 3 |
| body color | 3 |
| yet known | 3 |
| australian sapphires | 3 |
| parallel lines | 3 |
| star facets | 3 |
| shakespeare precious | 3 |
| mineral known | 3 |
| diaphanous stones | 3 |
| stones show | 3 |
| stone appears | 3 |
| except diamond | 3 |
| cushion shape | 3 |
| far considered | 3 |
| tubular internal | 3 |
| luster may | 3 |
| hardness may | 3 |
| different materials | 3 |
| bluish green | 3 |
| front elevation | 3 |
| white stones | 3 |
| fine gems | 3 |
| heat treatment | 3 |
| per pennyweight | 3 |
| curious lore | 3 |
| roman pearls | 3 |
| also occur | 3 |
| chemical change | 3 |
| hardness tests | 3 |
| pearl oyster | 3 |
| common garnet | 3 |
| artificial stone | 3 |
| per minute | 3 |
| good lens | 3 |
| little value | 3 |
| great diamonds | 3 |
| sons new | 3 |
| altered stones | 3 |
| microcosmic salt | 3 |
| hard stones | 3 |
| usually correctly | 3 |
| will wear | 3 |
| decimal system | 3 |
| pure carbon | 3 |
| rather brittle | 3 |
| good quality | 3 |
| also red | 3 |
| red zircon | 3 |
| light falls | 3 |
| yellowish tint | 3 |
| large quantities | 3 |
| valuable jewels | 3 |
| principal gems | 3 |
| less valuable | 3 |
| already mentioned | 3 |
| doubly refractive | 3 |
| orange red | 3 |
| must use | 3 |
| chapter xiv | 3 |
| stone must | 3 |
| almost exclusively | 3 |
| cabochon cutting | 3 |
| margaret hartsyde | 3 |
| strictly speaking | 3 |
| fine powder | 3 |
| opposite direction | 3 |
| lord bacon | 3 |
| command high | 3 |
| next step | 3 |
| fine jewels | 3 |
| cemented together | 3 |
| called almandine | 3 |
| curving parallel | 3 |
| show double | 3 |
| easily seen | 3 |
| appear double | 3 |
| volcanic pipes | 3 |
| common opal | 3 |
| sharp edge | 3 |
| greenish blue | 3 |
| stone known | 3 |
| good account | 3 |
| one hundredths | 3 |
| different varieties | 3 |
| slightly different | 3 |
| brown diamond | 3 |
| green beryl | 3 |
| trade secrets | 3 |
| hard stone | 3 |
| topaz will | 3 |
| deceive one | 3 |
| pink topaz | 3 |
| furnishes us | 3 |
| set forth | 3 |
| direct comparison | 3 |
| quite sufficient | 3 |
| considerable fire | 3 |
| iron pyrites | 3 |
| one time | 3 |
| electric polarity | 3 |
| toward light | 3 |
| vertical axis | 3 |
| eighteenth century | 3 |
| mostly found | 3 |
| de proprietatibus | 3 |
| chemical properties | 3 |
| true lapis | 3 |
| reflected within | 3 |
| much greater | 3 |
| will become | 3 |
| stone might | 3 |
| large ones | 3 |
| british museum | 3 |
| brazilian diamonds | 3 |
| different properties | 3 |
| stones must | 3 |
| rather soft | 3 |
| red garnets | 3 |
| light will | 3 |
| brazilian stones | 3 |
| two lateral | 3 |
| henri iv | 3 |
| rose form | 3 |
| dichroscope shows | 3 |
| centum ad | 3 |
| color adjective | 3 |
| following lines | 3 |
| many jewels | 3 |
| coming now | 3 |
| flint glass | 3 |
| seldom seen | 3 |
| numerical properties | 3 |
| gem quality | 3 |
| previous lesson | 3 |
| will enable | 3 |
| queen elizabeth | 3 |
| whose fresh | 3 |
| black opals | 3 |
| smith refractometer | 3 |
| closely resemble | 3 |
| true scratch | 3 |
| frederick kunz | 3 |
| principal source | 3 |
| crust constituents | 3 |
| day book | 3 |
| unknown gem | 3 |
| paled pearls | 3 |
| though often | 3 |
| fine sapphire | 3 |
| made brilliants | 3 |
| named simply | 3 |
| coral clasps | 3 |
| typical defects | 3 |
| color may | 3 |
| one need | 3 |
| great difficulty | 3 |
| white stone | 3 |
| richard field | 3 |
| cut glass | 3 |
| almost black | 3 |
| light passing | 3 |
| especially fine | 3 |
| african diamonds | 3 |
| also show | 3 |
| may make | 3 |
| adamantine lustre | 3 |
| shaped pearls | 3 |
| fine pink | 3 |
| magnetic properties | 3 |
| highly regarded | 3 |
| objects manifold | 3 |
| clifford smith | 3 |
| spectra will | 3 |
| fancy sapphires | 3 |
| grolier club | 3 |
| great hardness | 3 |
| true adamantine | 3 |
| light blue | 3 |
| unless one | 3 |
| rough diamond | 3 |
| imported merchandise | 3 |
| one might | 3 |
| will weigh | 3 |
| pale sky | 3 |
| hardness test | 3 |
| fine quality | 3 |
| called scientific | 3 |
| almost pure | 3 |
| comparatively common | 3 |
| fine specimen | 3 |
| back angle | 3 |
| top slope | 3 |
| genuine stones | 3 |
| chemical action | 3 |
| wear well | 3 |
| polishing material | 3 |
| deep color | 3 |
| lateral axes | 3 |
| called chrysolite | 3 |
| thine eye | 3 |
| rubies red | 3 |
| test will | 3 |
| almost adamantine | 3 |
| iron will | 3 |
| whose price | 3 |
| furnish us | 3 |
| regard weak | 3 |
| sometimes used | 3 |
| artificially whitened | 3 |
| consider briefly | 3 |
| vary considerably | 3 |
| paste imitation | 3 |
| king john | 3 |
| crystal form | 3 |
| also fire | 3 |
| andradite garnet | 3 |
| hand pan | 3 |
| liquid pearl | 3 |
| paste gems | 3 |
| imitation precious | 3 |
| fresh regard | 3 |
| lack dichroism | 3 |
| two materials | 3 |
| white diamonds | 3 |
| will next | 3 |
| wonderful play | 3 |
| stones made | 3 |
| brown zircon | 3 |
| proprietatibus rerum | 3 |
| high temperature | 3 |
| stone will | 3 |
| reflection effects | 3 |
| red sea | 3 |
| frequently cut | 3 |
| name demantoid | 3 |
| much better | 3 |
| sky blue | 3 |
| valuable gems | 3 |
| red garnet | 3 |
| combined water | 3 |
| first edition | 3 |
| green tint | 3 |
| cut en | 3 |
| little text | 3 |
| much material | 3 |
| amber studs | 3 |
| stones appear | 3 |
| hard wear | 3 |
| opal blend | 3 |
| almandine garnets | 3 |
| another variety | 3 |
| one day | 3 |
| blue green | 3 |
| burmah rubies | 3 |
| blue diamond | 3 |
| aluminum oxide | 3 |
| mineral olivine | 3 |
| colors will | 3 |
| african diamond | 3 |
| fine white | 3 |
| ring mountings | 3 |
| lippincott co | 3 |
| will prove | 3 |
| weak sights | 3 |
| great interest | 3 |
| good results | 2 |
| high class | 2 |
| vivid spectra | 2 |
| one hundred | 2 |
| whitened zircons | 2 |
| diego county | 2 |
| hard file | 2 |
| tiny bubbles | 2 |
| glowing coal | 2 |
| balance pan | 2 |
| green chrysolite | 2 |
| unknown identity | 2 |
| depends largely | 2 |
| without dichroism | 2 |
| just described | 2 |
| many dealers | 2 |
| less specific | 2 |
| applied heat | 2 |
| nothing else | 2 |
| one plane | 2 |
| glass part | 2 |
| separately paged | 2 |
| considerable extent | 2 |
| goutte de | 2 |
| palest tints | 2 |
| almost certainly | 2 |
| isaac jaggard | 2 |
| still others | 2 |
| identity comes | 2 |
| diaphanous stone | 2 |
| crystals possessing | 2 |
| perhaps millions | 2 |
| important constituent | 2 |
| beautiful variety | 2 |
| title page | 2 |
| may distinguish | 2 |
| proper color | 2 |
| siam rubies | 2 |
| three kings | 2 |
| thin slice | 2 |
| artificially altered | 2 |
| hard steel | 2 |
| six journeys | 2 |
| expert will | 2 |
| whole surface | 2 |
| certain crystalline | 2 |
| one made | 2 |
| another important | 2 |
| synthetic stones | 2 |
| mountain streams | 2 |
| full cut | 2 |
| also supplies | 2 |
| small sizes | 2 |
| joined together | 2 |
| crystallised carbon | 2 |
| raspberry red | 2 |
| new style | 2 |
| methods used | 2 |
| one place | 2 |
| usual colors | 2 |
| splendid surface | 2 |
| better grades | 2 |
| gems furnished | 2 |
| remove imperfect | 2 |
| fine imitations | 2 |
| small hole | 2 |
| cheaper grades | 2 |
| equal color | 2 |
| hardness table | 2 |
| black men | 2 |
| columbia university | 2 |
| minerals mentioned | 2 |
| pale beryl | 2 |
| usually composed | 2 |
| yellow topazes | 2 |
| chemical constituents | 2 |
| pleasing color | 2 |
| college text | 2 |
| old style | 2 |
| comparison will | 2 |
| electric blue | 2 |
| steeper back | 2 |
| called cinnamon | 2 |
| two largest | 2 |
| chemical elements | 2 |
| order thoroughly | 2 |
| olivine corundum | 2 |
| brief account | 2 |
| beautiful green | 2 |
| rounding character | 2 |
| fine natural | 2 |
| change will | 2 |
| timely shaded | 2 |
| little poem | 2 |
| another way | 2 |
| pith ball | 2 |
| shakespeare wrote | 2 |
| many hessonite | 2 |
| brazil also | 2 |
| pearly lining | 2 |
| large masses | 2 |
| expert judge | 2 |
| will attempt | 2 |
| may perhaps | 2 |
| concerning precious | 2 |
| form four | 2 |
| scarf pins | 2 |
| new jerusalem | 2 |
| saturated solution | 2 |
| magnificent colour | 2 |
| purplish red | 2 |
| greek word | 2 |
| true gems | 2 |
| color will | 2 |
| one substance | 2 |
| inner sides | 2 |
| will usually | 2 |
| far removed | 2 |
| also interesting | 2 |
| two oxides | 2 |
| two hands | 2 |
| masculine stones | 2 |
| make clear | 2 |
| closely examine | 2 |
| another book | 2 |
| thin metal | 2 |
| small size | 2 |
| give good | 2 |
| chemically coloured | 2 |
| william jaggard | 2 |
| first hand | 2 |
| true scientific | 2 |
| louis xiv | 2 |
| precious ring | 2 |
| now placed | 2 |
| true moonstone | 2 |
| wrongly called | 2 |
| river stones | 2 |
| peculiar appearance | 2 |
| coloured mixture | 2 |
| appear almost | 2 |
| boracic acid | 2 |
| actual cause | 2 |
| first discovered | 2 |
| mineral may | 2 |
| many mineral | 2 |
| brilliant jewels | 2 |
| latter will | 2 |
| will cut | 2 |
| higher price | 2 |
| turkey cushions | 2 |
| six times | 2 |
| spherical shape | 2 |
| pearl whose | 2 |
| technically called | 2 |
| one kiss | 2 |
| gem stones | 2 |
| six varieties | 2 |
| pearls may | 2 |
| little practice | 2 |
| must necessarily | 2 |
| base indian | 2 |
| single images | 2 |
| two poles | 2 |
| go seek | 2 |
| old carat | 2 |
| cleavage will | 2 |
| yellow corundum | 2 |
| india furnishes | 2 |
| slightly convex | 2 |
| liquid drops | 2 |
| arranged according | 2 |
| river gravels | 2 |
| ammianus marcellinus | 2 |
| spare time | 2 |
| different refractive | 2 |
| three parts | 2 |
| colourless stones | 2 |
| properties one | 2 |
| spare moments | 2 |
| imitation emerald | 2 |
| quartz gem | 2 |
| convex lens | 2 |
| bohemian garnets | 2 |
| called blue | 2 |
| many instances | 2 |
| sometimes wrongly | 2 |
| refraction explanation | 2 |
| though somewhat | 2 |
| geneva bible | 2 |
| principal optical | 2 |
| facets form | 2 |
| many precious | 2 |
| make grief | 2 |
| easy matter | 2 |
| iron garnet | 2 |
| right hand | 2 |
| finest jewels | 2 |
| ever seen | 2 |
| macon county | 2 |
| respective colours | 2 |
| rough stone | 2 |
| chrome garnets | 2 |
| bladed grass | 2 |
| sloping surface | 2 |
| color play | 2 |
| high power | 2 |
| property possessed | 2 |
| might almost | 2 |
| golden quartz | 2 |
| old pearls | 2 |
| book will | 2 |
| dangerous imitation | 2 |
| vivid flashes | 2 |
| new edition | 2 |
| called rubellite | 2 |
| speaking broadly | 2 |
| scientific emeralds | 2 |
| essentially underground | 2 |
| beautiful sapphire | 2 |
| complete transparency | 2 |
| must first | 2 |
| comparatively low | 2 |
| full bottle | 2 |
| fine rubies | 2 |
| commonly known | 2 |
| blue sapphires | 2 |
| times recently | 2 |
| usually one | 2 |
| john ruskin | 2 |
| feebly doubly | 2 |
| much abused | 2 |
| early part | 2 |
| every one | 2 |
| emerald might | 2 |
| properly called | 2 |
| back surface | 2 |
| general types | 2 |
| sir sidney | 2 |
| several types | 2 |
| become necessary | 2 |
| new one | 2 |
| correct names | 2 |
| poor color | 2 |
| species considered | 2 |
| fluorspar apatite | 2 |
| corundum rubies | 2 |
| flat top | 2 |
| known examples | 2 |
| much earlier | 2 |
| therefore appear | 2 |
| minutely crystalline | 2 |
| crackled quartz | 2 |
| magnifying glass | 2 |
| various quartz | 2 |
| violet stones | 2 |
| factors governing | 2 |
| cause light | 2 |
| rapidly changing | 2 |
| called oriental | 2 |
| telling use | 2 |
| shakespeare engraved | 2 |
| must now | 2 |
| sir john | 2 |
| parallel layers | 2 |
| general shape | 2 |
| commercial value | 2 |
| pliny describes | 2 |
| bell daldy | 2 |
| away richer | 2 |
| layers beneath | 2 |
| double nitrate | 2 |
| less lovely | 2 |
| good deal | 2 |
| rich embroidery | 2 |
| discussing mineral | 2 |
| corundum ruby | 2 |
| facets may | 2 |
| great measure | 2 |
| nearly adamantine | 2 |
| comes along | 2 |
| knowledge regarding | 2 |
| like bottle | 2 |
| become clouded | 2 |
| may cause | 2 |
| accurate determination | 2 |
| whole will | 2 |
| violet red | 2 |
| water appearance | 2 |
| strong dichroism | 2 |
| gem stone | 2 |
| famous koh | 2 |
| slight differences | 2 |
| exceedingly scarce | 2 |
| simple means | 2 |
| perfect chrysolite | 2 |
| light without | 2 |
| fairly tough | 2 |
| great number | 2 |
| world twice | 2 |
| project gutenberg | 2 |
| iron ore | 2 |
| pearl away | 2 |
| perfectly clear | 2 |
| sapphire blue | 2 |
| time came | 2 |
| must also | 2 |
| much light | 2 |
| may result | 2 |
| shaped brilliant | 2 |
| following injunction | 2 |
| one element | 2 |
| diamond alone | 2 |
| skate slips | 2 |
| siam ruby | 2 |
| term orient | 2 |
| crystal walls | 2 |
| bottle stone | 2 |
| ruby mines | 2 |
| refracting mineral | 2 |
| shall come | 2 |
| value among | 2 |
| always equal | 2 |
| will cause | 2 |
| fine deep | 2 |
| large sum | 2 |
| tempest beat | 2 |
| quartz containing | 2 |
| tinted stones | 2 |
| old carats | 2 |
| may give | 2 |
| term ruby | 2 |
| sonnet cxxx | 2 |
| called asteriated | 2 |
| transmitting light | 2 |
| contains much | 2 |
| whose color | 2 |
| fine file | 2 |
| mainly quartz | 2 |
| tell scientific | 2 |
| considerable amount | 2 |
| similar nature | 2 |
| memorial collection | 2 |
| crystal favours | 2 |
| also easily | 2 |
| two substances | 2 |
| opposite end | 2 |
| rough diamonds | 2 |
| two rays | 2 |
| freely used | 2 |
| number repeated | 2 |
| diamond settings | 2 |
| gives fairly | 2 |
| shows two | 2 |
| much softer | 2 |
| camden hotten | 2 |
| flat facets | 2 |
| several forms | 2 |
| already explained | 2 |
| london illustration | 2 |
| perhaps two | 2 |
| great statesman | 2 |
| gems may | 2 |
| fine glass | 2 |
| appear also | 2 |
| reflect light | 2 |
| yellow stone | 2 |
| single mention | 2 |
| latter part | 2 |
| specimens come | 2 |
| crystal eyes | 2 |
| zircon comes | 2 |
| tell almost | 2 |
| john camden | 2 |
| gem may | 2 |
| precious material | 2 |
| sulphuric acid | 2 |
| active material | 2 |
| fine black | 2 |
| every gem | 2 |
| ever known | 2 |
| scientific method | 2 |
| short time | 2 |
| burmah ruby | 2 |
| edu posner | 2 |
| blue stone | 2 |
| somewhat lighter | 2 |
| years later | 2 |
| greatly different | 2 |
| certain direction | 2 |
| indian stones | 2 |
| arnold lulls | 2 |
| inferior color | 2 |
| variety known | 2 |
| metric system | 2 |
| pale blue | 2 |
| shakespeare must | 2 |
| equally well | 2 |
| william herrick | 2 |
| new compounds | 2 |
| great variety | 2 |
| aluminum phosphate | 2 |
| curious blue | 2 |
| scratch readily | 2 |
| great ring | 2 |
| bright orient | 2 |
| powdered stone | 2 |
| edmund falconer | 2 |
| small weights | 2 |
| carat may | 2 |
| water pearls | 2 |
| following verses | 2 |
| one point | 2 |
| instrument called | 2 |
| next mineral | 2 |
| stones represent | 2 |
| stones treating | 2 |
| ink sapphires | 2 |
| light succeeds | 2 |
| ben jonson | 2 |
| light appear | 2 |
| binding material | 2 |
| basal plane | 2 |
| water sapphire | 2 |
| physical property | 2 |
| thin films | 2 |
| one entire | 2 |
| never found | 2 |
| almost beyond | 2 |
| separate pagination | 2 |
| metallic appearance | 2 |
| get back | 2 |
| french crown | 2 |
| shakespeares comedies | 2 |
| inner lines | 2 |
| much smaller | 2 |
| glance whether | 2 |
| term chrysolite | 2 |
| ring use | 2 |
| bright eyes | 2 |
| worn away | 2 |
| us peridot | 2 |
| arizona ruby | 2 |
| best specimens | 2 |
| comes nearest | 2 |
| seldom cut | 2 |
| may receive | 2 |
| little known | 2 |
| double refracting | 2 |
| charged water | 2 |
| roman type | 2 |
| tell whether | 2 |
| chemical illustration | 2 |
| rough gem | 2 |
| lead one | 2 |
| light rays | 2 |
| whatever color | 2 |
| curious phosphorescent | 2 |
| indigo sapphires | 2 |
| show distinct | 2 |
| also help | 2 |
| every portion | 2 |
| cut across | 2 |
| defects common | 2 |
| shows hardly | 2 |
| paste brilliant | 2 |
| sometimes opaque | 2 |
| absolutely clear | 2 |
| intrinsic value | 2 |
| king richard | 2 |
| actual market | 2 |
| wooden wheel | 2 |
| outer skin | 2 |
| great care | 2 |
| rounded top | 2 |
| beautiful luster | 2 |
| silica group | 2 |
| scratched topaz | 2 |
| may soon | 2 |
| following table | 2 |
| red tourmaline | 2 |
| william hone | 2 |
| deceive even | 2 |
| ordinary amethyst | 2 |
| shows dichroism | 2 |
| green shade | 2 |
| facetted stones | 2 |
| gregorian calendar | 2 |
| good polish | 2 |
| flat facet | 2 |
| several varieties | 2 |
| except perhaps | 2 |
| exceedingly tough | 2 |
| white brilliancy | 2 |
| images will | 2 |
| singly refractive | 2 |
| lines will | 2 |
| many places | 2 |
| popular names | 2 |
| approximately equal | 2 |
| phosphorescent glow | 2 |
| slightly lighter | 2 |
| testing stones | 2 |
| considerable time | 2 |
| ancient times | 2 |
| fine linen | 2 |
| also found | 2 |
| another example | 2 |
| fairy favors | 2 |
| great extent | 2 |
| two lots | 2 |
| hydrous form | 2 |
| unio margaritifera | 2 |
| noble ladies | 2 |
| two minerals | 2 |
| minas geraes | 2 |
| lesson xxii | 2 |
| small island | 2 |
| html version | 2 |
| feminine stones | 2 |
| diamond jewel | 2 |
| will suggest | 2 |
| variety kunzite | 2 |
| colorless topaz | 2 |
| gently rubbed | 2 |
| deeply colored | 2 |
| bright eye | 2 |
| facets immediately | 2 |
| shakespeare signatures | 2 |
| color might | 2 |
| inferior sapphires | 2 |
| colorless beryl | 2 |
| good color | 2 |
| almost transparent | 2 |
| also furnishes | 2 |
| like sapphire | 2 |
| grief bliss | 2 |
| present time | 2 |
| color stone | 2 |
| metallic element | 2 |
| large size | 2 |
| yellow sapphire | 2 |
| rhodolite garnets | 2 |
| used much | 2 |
| true pearly | 2 |
| made somewhat | 2 |
| brown garnet | 2 |
| conducting support | 2 |
| reasonably tough | 2 |
| causes many | 2 |
| unequal expansion | 2 |
| hope blue | 2 |
| milky cloudiness | 2 |
| new zealand | 2 |
| near together | 2 |
| less hardness | 2 |
| facets will | 2 |
| character may | 2 |
| finely cut | 2 |
| ten days | 2 |
| pearly layers | 2 |
| various glasses | 2 |
| identical form | 2 |
| middle ages | 2 |
| price charged | 2 |
| western states | 2 |
| pure anhydrous | 2 |
| appear blue | 2 |
| varying somewhat | 2 |
| standard stones | 2 |
| many specimens | 2 |
| garnet furnishes | 2 |
| red spinel | 2 |
| pott co | 2 |
| crystal gate | 2 |
| precious metals | 2 |
| large diamonds | 2 |
| pure state | 2 |
| uncut stones | 2 |
| known crystals | 2 |
| white zircon | 2 |
| slightly less | 2 |
| igneous origin | 2 |
| diamond crystal | 2 |
| noble garnet | 2 |
| real stones | 2 |
| fine golden | 2 |
| south west | 2 |
| now comes | 2 |
| principal types | 2 |
| metallic elements | 2 |
| pinked topazes | 2 |
| also list | 2 |
| also serves | 2 |
| color must | 2 |
| nine planes | 2 |
| carbonate series | 2 |
| another world | 2 |
| regarding precious | 2 |
| may readily | 2 |
| corundum group | 2 |
| violet tint | 2 |
| genuine emeralds | 2 |
| different class | 2 |
| sometimes almost | 2 |
| various forms | 2 |
| pure oxide | 2 |
| sometimes incorrectly | 2 |
| top facets | 2 |
| will always | 2 |
| harness studded | 2 |
| relative softness | 2 |
| bodleian library | 2 |
| powdered quartz | 2 |
| chief charm | 2 |
| poet concerning | 2 |
| fairly high | 2 |
| ever discovered | 2 |
| transparent stone | 2 |
| gems see | 2 |
| will form | 2 |
| fine diamond | 2 |
| frequently necessary | 2 |
| artificial precious | 2 |
| powerfully magnetic | 2 |
| also describes | 2 |
| certain precious | 2 |
| look first | 2 |
| hispanic museum | 2 |
| bright light | 2 |
| pearl must | 2 |
| faint traces | 2 |
| average better | 2 |
| arizona rubies | 2 |
| keen whips | 2 |
| heart shape | 2 |
| golden fancies | 2 |
| unknown stone | 2 |
| minute differences | 2 |
| blue colour | 2 |
| soon see | 2 |
| approaches emerald | 2 |
| hard mineral | 2 |
| green corundum | 2 |
| latter case | 2 |
| will frequently | 2 |
| artificial pearls | 2 |
| garnets belong | 2 |
| silver capes | 2 |
| consider first | 2 |
| imperfect parts | 2 |
| old weight | 2 |
| woman hater | 2 |
| tests will | 2 |
| author wishes | 2 |
| far back | 2 |
| may lead | 2 |
| exactly alike | 2 |
| fine corundum | 2 |
| oily luster | 2 |
| delicate balances | 2 |
| rather large | 2 |
| easily find | 2 |
| relatively small | 2 |
| use care | 2 |
| large number | 2 |
| prismatic colors | 2 |
| red rays | 2 |
| original matrix | 2 |
| edward blount | 2 |
| principal gem | 2 |
| exposing fresh | 2 |
| widely distributed | 2 |
| interesting work | 2 |
| foul oyster | 2 |
| will squirt | 2 |
| last two | 2 |
| impalpable powder | 2 |
| stones belong | 2 |
| waxy luster | 2 |
| now called | 2 |
| royal treasury | 2 |
| nephrite variety | 2 |
| one light | 2 |
| de valois | 2 |
| color varieties | 2 |
| will best | 2 |
| czar alexander | 2 |
| olivine gives | 2 |
| transparent material | 2 |
| black stones | 2 |
| true topazes | 2 |
| now cut | 2 |
| word surrounded | 2 |
| prussian blue | 2 |
| topaz crystal | 2 |
| us now | 2 |
| human eye | 2 |
| negative electricity | 2 |
| ceylon furnishes | 2 |
| applies equally | 2 |
| hexagonal crystal | 2 |
| reflected onto | 2 |
| four principal | 2 |
| phosphoric acid | 2 |
| various metallic | 2 |
| light strikes | 2 |
| smaller sizes | 2 |
| golden brown | 2 |
| power lens | 2 |
| material will | 2 |
| fine large | 2 |
| fourth variety | 2 |
| tubular structure | 2 |
| orient pearls | 2 |
| one must | 2 |
| william shakespeare | 2 |
| smaller weights | 2 |
| necessary information | 2 |
| making eight | 2 |
| turned green | 2 |
| parted thence | 2 |
| six authentic | 2 |
| gutenberg also | 2 |
| well acquainted | 2 |
| noble chrysolite | 2 |
| large numbers | 2 |
| term oriental | 2 |
| early editions | 2 |
| decimal place | 2 |
| eight cross | 2 |
| bluish stone | 2 |
| coloured quartz | 2 |
| natural material | 2 |
| de suif | 2 |
| cutting diamonds | 2 |
| excellent account | 2 |
| little time | 2 |
| foreign substance | 2 |
| gas bubbles | 2 |
| single like | 2 |
| uncommon thing | 2 |
| stones vary | 2 |
| chapter xi | 2 |
| york london | 2 |
| montana sapphires | 2 |
| queen victoria | 2 |
| natural pearl | 2 |
| gems will | 2 |
| various groups | 2 |
| structural defects | 2 |
| double cabochon | 2 |
| real rubies | 2 |
| gems belong | 2 |
| altogether transparent | 2 |
| much used | 2 |
| almost entirely | 2 |
| stone becomes | 2 |
| surrounding substances | 2 |
| aqueous solution | 2 |
| jean baptiste | 2 |
| fine diamonds | 2 |
| lacks variety | 2 |
| first two | 2 |
| julius wodiska | 2 |
| degree back | 2 |
| refractive indexes | 2 |
| less brittle | 2 |
| emerald triplet | 2 |
| less strongly | 2 |
| portion covered | 2 |
| lessons will | 2 |
| feldspar gems | 2 |
| crystal tide | 2 |
| close study | 2 |
| flying carborundum | 2 |
| much water | 2 |
| upper crust | 2 |
| many excellent | 2 |
| authentic shakespeare | 2 |
| complex substance | 2 |
| chapter ii | 2 |
| royal society | 2 |
| false stone | 2 |
| pierpont morgan | 2 |
| golden beryl | 2 |
| fine pearl | 2 |
| complete account | 2 |
| may consider | 2 |
| continued pressure | 2 |
| may seem | 2 |
| translucent stone | 2 |
| oriental garnet | 2 |
| diamond stands | 2 |
| take part | 2 |
| somewhat similar | 2 |
| two extremes | 2 |
| proper cutting | 2 |
| beryl glass | 2 |
| name topaz | 2 |
| many people | 2 |
| swiss lapis | 2 |
| ab represents | 2 |
| bliss anne | 2 |
| less easily | 2 |
| british numismatic | 2 |
| foreign material | 2 |
| harry emanuel | 2 |
| descending order | 2 |
| original illustrations | 2 |
| revolutions per | 2 |
| sometimes also | 2 |
| see crystals | 2 |
| jadeite variety | 2 |
| preferably water | 2 |
| oriental aquamarine | 2 |
| somewhat difficult | 2 |
| transparent medium | 2 |
| siberian amethyst | 2 |
| name emerald | 2 |
| alone will | 2 |
| engraved gems | 2 |
| new mexico | 2 |
| one transparent | 2 |
| coloured light | 2 |
| comparatively inexpensive | 2 |
| shed shall | 2 |
| pointed star | 2 |
| dated march | 2 |
| two pearls | 2 |
| chemical formula | 2 |
| pearly luster | 2 |
| rough stones | 2 |
| garnet part | 2 |
| lines also | 2 |
| alexander ii | 2 |
| material known | 2 |
| two colours | 2 |
| brittle materials | 2 |
| electric properties | 2 |
| probably never | 2 |
| sided facets | 2 |
| cut diamonds | 2 |
| time without | 2 |
| unique copy | 2 |
| crystal scales | 2 |
| cervantes died | 2 |
| two species | 2 |
| tourmaline will | 2 |
| see refraction | 2 |
| original form | 2 |
| true weight | 2 |
| test stones | 2 |
| almandine spinel | 2 |
| one fifth | 2 |
| best way | 2 |
| crystal eyne | 2 |
| square prismatic | 2 |
| takes hold | 2 |
| lines may | 2 |
| wearing away | 2 |
| weighed nearly | 2 |
| ordinary atmospheric | 2 |
| opaque stones | 2 |
| green material | 2 |
| polished exactly | 2 |
| san diego | 2 |
| called cape | 2 |
| ground glass | 2 |
| rarer stones | 2 |
| pearls like | 2 |
| great contemporary | 2 |
| sonnet xlvi | 2 |
| prismatic play | 2 |
| will fall | 2 |
| plane surfaces | 2 |
| entirely distinct | 2 |
| testing imitations | 2 |
| earliest plays | 2 |
| fine red | 2 |
| carborundum wheel | 2 |
| larger red | 2 |
| transparent stones | 2 |
| thousand ducats | 2 |
| reader will | 2 |
| golden palaces | 2 |
| degree top | 2 |
| another direction | 2 |
| modern times | 2 |
| partly due | 2 |
| appearance within | 2 |
| older works | 2 |
| back angles | 2 |
| crystal may | 2 |
| exhibits dichroism | 2 |
| show window | 2 |
| one variety | 2 |
| called hyacinth | 2 |
| fine yellow | 2 |
| george heriot | 2 |
| slowly transformed | 2 |
| also called | 2 |
| one name | 2 |
| whole stone | 2 |
| african stones | 2 |
| may advisedly | 2 |
| reflection within | 2 |
| large stone | 2 |
| made six | 2 |
| atmospheric temperature | 2 |
| light green | 2 |
| completely opaque | 2 |
| will reveal | 2 |
| certain varieties | 2 |
| first consider | 2 |
| lower cone | 2 |
| become expert | 2 |
| mounted stones | 2 |
| rubies come | 2 |
| pear shape | 2 |
| almandine garnet | 2 |
| composition thereof | 2 |
| another angle | 2 |
| black darkness | 2 |
| heat applied | 2 |
| might well | 2 |
| often seen | 2 |
| beryl may | 2 |
| conduct heat | 2 |
| henry viii | 2 |
| true olivine | 2 |
| known references | 2 |
| correctly called | 2 |
| gravity varies | 2 |
| firm support | 2 |
| another characteristic | 2 |
| ceylon sapphires | 2 |
| many references | 2 |
| hence lack | 2 |
| like volume | 2 |
| metalliferous ores | 2 |
| less expensive | 2 |
| fine tourmalines | 2 |
| will display | 2 |
| fine peridots | 2 |
| weigh less | 2 |
| opal may | 2 |
| iron wheel | 2 |
| metal lap | 2 |
| proper name | 2 |
| widely differing | 2 |
| glass stopper | 2 |
| circular disc | 2 |
| nostrand co | 2 |
| put away | 2 |
| rich jewel | 2 |
| little later | 2 |
| green topaz | 2 |
| good general | 2 |
| limestone matrix | 2 |
| diamonds cut | 2 |
| john spilman | 2 |
| van nostrand | 2 |
| may next | 2 |
| another property | 2 |
| andradite garnets | 2 |
| will sometimes | 2 |
| aventurine quartz | 2 |
| called pyrope | 2 |
| pearl button | 2 |
| altogether different | 2 |
| upper cone | 2 |
| sufficiently accurate | 2 |
| carbonic acid | 2 |
| beautiful blue | 2 |
| swell like | 2 |
| often called | 2 |
| slight change | 2 |
| max bauer | 2 |
| unnumbered page | 2 |
| long account | 2 |
| gem books | 2 |
| heat none | 2 |
| forms given | 2 |
| may resemble | 2 |
| actual acquaintance | 2 |
| ancient egyptians | 2 |
| different species | 2 |
| deep blue | 2 |
| shakespeare writes | 2 |
| called topaz | 2 |
| may serve | 2 |
| different density | 2 |
| fine emery | 2 |
| closely similar | 2 |
| blood color | 2 |
| furnishes considerable | 2 |
| keen luster | 2 |
| little used | 2 |
| right angle | 2 |
| pearls will | 2 |
| lesson xii | 2 |
| gathered together | 2 |
| philip ii | 2 |
| considerable quantities | 2 |
| sample calculation | 2 |
| first step | 2 |
| will readily | 2 |
| known little | 2 |
| creamy tint | 2 |
| colored plates | 2 |
| fancy color | 2 |
| called king | 2 |
| deep green | 2 |
| cluster work | 2 |
| testing unknown | 2 |
| fairly vivid | 2 |
| coral mouth | 2 |
| good likeness | 2 |
| different localities | 2 |
| small true | 2 |
| crystal tears | 2 |
| latin original | 2 |
| hardened steel | 2 |
| one end | 2 |
| twice rich | 2 |
| stones usually | 2 |
| great proportion | 2 |
| scientific corundum | 2 |
| good one | 2 |
| saint george | 2 |
| already owned | 2 |
| seldom found | 2 |
| unerring accuracy | 2 |
| irregular shape | 2 |
| present known | 2 |
| anhydrous alumina | 2 |
| hand book | 2 |
| tool steel | 2 |
| several stones | 2 |
| testing hardness | 2 |
| coral made | 2 |
| often found | 2 |
| small degree | 2 |
| glass like | 2 |
| deeper blue | 2 |
| important variety | 2 |
| true pearls | 2 |
| bell sons | 2 |
| found along | 2 |
| frequently contain | 2 |
| orient list | 2 |
| artificial rubies | 2 |
| always make | 2 |
| pure crystallised | 2 |
| maine tourmaline | 2 |
| another method | 2 |
| diamond safe | 2 |
| lesson xxv | 2 |
| facet known | 2 |
| talc rock | 2 |
| large one | 2 |
| wheel will | 2 |
| intertissued robe | 2 |
| upper burmah | 2 |
| like round | 2 |
| usually sufficient | 2 |
| perhaps one | 2 |
| will probably | 2 |
| single stone | 2 |
| commonly used | 2 |
| one species | 2 |