Gemmology
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Rock crystal — specimen 0189, photo © NMNHS
Rock crystal — specimen 0189, photo © NMNHS

Rock crystalspecimen 0189

Origin

no precise locality [Africa]
Data

Weight: 2.42 ct; size: 8.98 | 8.96 | 6.04 mm; shape: octagon; colour: medium light greenish yellow; strong; clarity: eye clean; cut: excellent; treatment: irradiation.
Notes

Very clean specimen; design ‘Eight’ by Glenn & Martha Vargas, excellent cut by Tan Pen.

Other specimens
Rock crystal — specimen 0408Rock crystal — specimen 0379Rock crystal — specimen 0589Rock crystal — specimen 0172Rock crystal — specimen 0291Rock crystal — specimen 0316Rock crystal — specimen 0420Rock crystal — specimen 0300Rock crystal — specimen 0197Rock crystal — specimen 0301Rock crystal — specimen 0206Rock crystal — specimen 0303Rock crystal — specimen 0304Rock crystal — specimen 0680Rock crystal — specimen 0709Rock crystal — specimen 0191Rock crystal — specimen 0246Rock crystal — specimen 0539

More information from ‘Classification’


A transparent colourless variety of quartz.