Gemmology
English | Български
Where am I? > Home > Repository > Rock crystal


Gallery view selector

Colour selector
Simple colour schemeredorangey redreddish orangeorangeorangey yellowyellowgreenish yellowyellowish greenslightly yellowish greengreenvery slightly bluish greenbluish greenvery strongly bluish greengreen-blue or blue-greenvery strongly greenish bluevery slightly greenish bluebluevioletish bluebluish violetvioletbluish purplepurplereddish purplestrongly purplish redslightly purplish redcolourlessgreyblack
Rock crystal — specimen 0172, photo © NMNHS
Rock crystal — specimen 0172, photo © NMNHS

Rock crystalspecimen 0172

Origin

no precise locality [Africa]
Data

Weight: 1.98 ct; size: 8.91 | 7.58 | 6.33 mm; shape: hexagon; colour: medium light greenish yellow; strong; clarity: eye clean; cut: excellent; treatment: irradiation.
Notes

Very clean specimen; design ‘APHEX’ by Jeff Ford, excellent cut by Tan Pen.

Other specimens
Rock crystal — specimen 0408Rock crystal — specimen 0379Rock crystal — specimen 0589Rock crystal — specimen 0291Rock crystal — specimen 0316Rock crystal — specimen 0189Rock 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.