Gemmology
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Rock crystal — specimen 0420, photo © NMNHS
Rock crystal — specimen 0420, photo © NMNHS

Rock crystalspecimen 0420

Origin

Europe
Bulgaria, Smolyan, Madan, Krushev Dol mine, 41.44577°N 24.93477°E
Rock crystal — specimen 0420, locality map
Data

Weight: 0.47 ct; size: 6.07 | 5.06 | 3.58 mm; shape: oval; colour: colourless; clarity: eye clean; cut: excellent; treatment: none.
Notes

Very clean specimen; design ‘Ovalimixtum’, 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 0189Rock 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.