Gemmology
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Rock crystal

A transparent colourless variety of quartz.

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Material from ‘Repository’

24 specimens: 0408 — 0.52 ct, no locality data; 0379 — 5.21 ct, no precise locality [Africa]; 0589 — 5.02 ct, no precise locality [Africa]; 0172 — 1.98 ct, no precise locality [Africa]; 0291 — 1.40 ct, no locality data; 0316 — 1.56 ct, no precise locality [Africa]; 0189 — 2.42 ct, no precise locality [Africa]; 0752 — 11.03 ct, Brazil; 0758 — 19.19 ct, Brazil; 0420 — 0.47 ct, Bulgaria, Smolyan, Madan, Krushev Dol Pb-Zn deposit, 41.44577°N 24.93477°E; 0300 — 326.60 ct, no precise locality [Africa]; 0197 — 4.42 ct, no locality data; 0301 — 2.50 ct, Brazil; 0206 — 0.51 ct, Bulgaria, Smolyan, Madan, Krushev Dol Pb-Zn deposit, 41.44577°N 24.93477°E; 0303 — 1.85 ct, no precise locality [Africa]; 0304 — 2.50 ct, Bulgaria, Smolyan, Madan, Borieva [Reka]; 0680 — 0.13 ct, Bulgaria, Kardzhali, Krumovgrad, East Rhodope Mts, Yaraklitepe, 41.502620°N 25.644925°E, 444 m; 0709 — 0.27 ct, Bulgaria, Kardzhali, Krumovgrad, East Rhodope Mts, Yaraklitepe, 41.502620°N 25.644925°E, 444 m; 0191 — 1.36 ct, no precise locality [Africa]; 0246 — 1.70 ct, no locality data; 0539 — 5.71 ct, no precise locality [Africa]; 0616 — 5.70 ct, Bulgaria, Smolyan, Madan, Krushev Dol Pb-Zn deposit, 41.44577°N 24.93477°E; 0755 — 0.69 ct, Bulgaria, Smolyan, Madan, Krushev Dol Pb-Zn deposit, 41.44577°N 24.93477°E; 0762 — 0.46 ct, Bulgaria, Smolyan, Madan, Krushev Dol Pb-Zn deposit, 41.44577°N 24.93477°E.


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