id sid tid token lemma pos 3b591833854 1 1 the the DET 3b591833854 1 2 zippeites zippeite NOUN 3b591833854 1 3 are be AUX 3b591833854 1 4 a a DET 3b591833854 1 5 group group NOUN 3b591833854 1 6 of of ADP 3b591833854 1 7 uranyl uranyl ADJ 3b591833854 1 8 sulfate sulfate NOUN 3b591833854 1 9 minerals mineral NOUN 3b591833854 1 10 containing contain VERB 3b591833854 1 11 a a DET 3b591833854 1 12 monoor monoor ADJ 3b591833854 1 13 divalent divalent ADJ 3b591833854 1 14 cation cation NOUN 3b591833854 1 15 , , PUNCT 3b591833854 1 16 defined define VERB 3b591833854 1 17 based base VERB 3b591833854 1 18 on on ADP 3b591833854 1 19 a a DET 3b591833854 1 20 similar similar ADJ 3b591833854 1 21 crystal crystal NOUN 3b591833854 1 22 structure structure NOUN 3b591833854 1 23 . . PUNCT 3b591833854 2 1 although although SCONJ 3b591833854 2 2 progress progress NOUN 3b591833854 2 3 has have AUX 3b591833854 2 4 been be AUX 3b591833854 2 5 made make VERB 3b591833854 2 6 toward toward ADP 3b591833854 2 7 understanding understand VERB 3b591833854 2 8 the the DET 3b591833854 2 9 crystal crystal NOUN 3b591833854 2 10 structure structure NOUN 3b591833854 2 11 and and CCONJ 3b591833854 2 12 chemistry chemistry NOUN 3b591833854 2 13 of of ADP 3b591833854 2 14 these these DET 3b591833854 2 15 minerals mineral NOUN 3b591833854 2 16 by by ADP 3b591833854 2 17 studying study VERB 3b591833854 2 18 synthetic synthetic ADJ 3b591833854 2 19 analogues analogue NOUN 3b591833854 2 20 , , PUNCT 3b591833854 2 21 very very ADV 3b591833854 2 22 little little ADJ 3b591833854 2 23 work work NOUN 3b591833854 2 24 has have AUX 3b591833854 2 25 been be AUX 3b591833854 2 26 done do VERB 3b591833854 2 27 with with ADP 3b591833854 2 28 natural natural ADJ 3b591833854 2 29 samples sample NOUN 3b591833854 2 30 due due ADP 3b591833854 2 31 to to ADP 3b591833854 2 32 their their PRON 3b591833854 2 33 small small ADJ 3b591833854 2 34 grain grain NOUN 3b591833854 2 35 size size NOUN 3b591833854 2 36 and and CCONJ 3b591833854 2 37 tendency tendency NOUN 3b591833854 2 38 to to PART 3b591833854 2 39 grow grow VERB 3b591833854 2 40 as as ADP 3b591833854 2 41 mixtures mixture NOUN 3b591833854 2 42 with with ADP 3b591833854 2 43 other other ADJ 3b591833854 2 44 minerals mineral NOUN 3b591833854 2 45 . . PUNCT 3b591833854 3 1 this this DET 3b591833854 3 2 study study NOUN 3b591833854 3 3 compared compare VERB 3b591833854 3 4 natural natural ADJ 3b591833854 3 5 samples sample NOUN 3b591833854 3 6 to to ADP 3b591833854 3 7 synthetic synthetic ADJ 3b591833854 3 8 crystals crystal NOUN 3b591833854 3 9 using use VERB 3b591833854 3 10 x x NOUN 3b591833854 3 11 - - NOUN 3b591833854 3 12 ray ray NOUN 3b591833854 3 13 diffraction diffraction NOUN 3b591833854 3 14 and and CCONJ 3b591833854 3 15 electron electron NOUN 3b591833854 3 16 microprobe microprobe NOUN 3b591833854 3 17 techniques technique NOUN 3b591833854 3 18 while while SCONJ 3b591833854 3 19 conducting conduct VERB 3b591833854 3 20 the the DET 3b591833854 3 21 first first ADJ 3b591833854 3 22 comprehensive comprehensive ADJ 3b591833854 3 23 study study NOUN 3b591833854 3 24 of of ADP 3b591833854 3 25 the the DET 3b591833854 3 26 crystal crystal ADJ 3b591833854 3 27 chemistry chemistry NOUN 3b591833854 3 28 of of ADP 3b591833854 3 29 these these DET 3b591833854 3 30 minerals mineral NOUN 3b591833854 3 31 . . PUNCT 3b591833854 4 1 although although SCONJ 3b591833854 4 2 wavelength wavelength ADJ 3b591833854 4 3 - - PUNCT 3b591833854 4 4 dispersive dispersive NOUN 3b591833854 4 5 spectroscopy spectroscopy NOUN 3b591833854 4 6 was be AUX 3b591833854 4 7 difficult difficult ADJ 3b591833854 4 8 , , PUNCT 3b591833854 4 9 largely largely ADV 3b591833854 4 10 due due ADJ 3b591833854 4 11 to to ADP 3b591833854 4 12 the the DET 3b591833854 4 13 quality quality NOUN 3b591833854 4 14 of of ADP 3b591833854 4 15 the the DET 3b591833854 4 16 samples sample NOUN 3b591833854 4 17 , , PUNCT 3b591833854 4 18 evidence evidence NOUN 3b591833854 4 19 was be AUX 3b591833854 4 20 found find VERB 3b591833854 4 21 for for ADP 3b591833854 4 22 solid solid ADJ 3b591833854 4 23 solution solution NOUN 3b591833854 4 24 between between ADP 3b591833854 4 25 the the DET 3b591833854 4 26 divalent divalent ADJ 3b591833854 4 27 cation cation NOUN 3b591833854 4 28 members member NOUN 3b591833854 4 29 , , PUNCT 3b591833854 4 30 between between ADP 3b591833854 4 31 the the DET 3b591833854 4 32 monovalent monovalent NOUN 3b591833854 4 33 cation cation NOUN 3b591833854 4 34 members member NOUN 3b591833854 4 35 , , PUNCT 3b591833854 4 36 and and CCONJ 3b591833854 4 37 even even ADV 3b591833854 4 38 between between ADP 3b591833854 4 39 both both DET 3b591833854 4 40 groups group NOUN 3b591833854 4 41 . . PUNCT 3b591833854 5 1 it it PRON 3b591833854 5 2 was be AUX 3b591833854 5 3 also also ADV 3b591833854 5 4 determined determine VERB 3b591833854 5 5 that that SCONJ 3b591833854 5 6 the the DET 3b591833854 5 7 synthetic synthetic ADJ 3b591833854 5 8 samples sample NOUN 3b591833854 5 9 used use VERB 3b591833854 5 10 for for ADP 3b591833854 5 11 crystal crystal NOUN 3b591833854 5 12 structure structure NOUN 3b591833854 5 13 determinations determination NOUN 3b591833854 5 14 are be AUX 3b591833854 5 15 reasonable reasonable ADJ 3b591833854 5 16 analogues analogue NOUN 3b591833854 5 17 for for ADP 3b591833854 5 18 the the DET 3b591833854 5 19 natural natural ADJ 3b591833854 5 20 minerals mineral NOUN 3b591833854 5 21 . . PUNCT