Gemmology
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Rock crystal — specimens [gallery view] (Page 3)


A transparent colourless variety of quartz.
Rock crystal — specimen 0539
0539
Africa
Rock crystal — specimen 0616
0616
Bulgaria
Rock crystal — specimen 0755
0755
Bulgaria
Rock crystal — specimen 0762
0762
Bulgaria

Rock crystal — specimens — 24
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Gemmology — gemstones
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The specimens illustrated in this site do not exist in the collections of the National Museum of Natural History, Sofia.