Gemmology
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Rock crystal — specimen 0197, photo © NMNHS
Rock crystal — specimen 0197, photo © NMNHS

Rock crystalspecimen 0197

Origin

no locality data
Data

Weight: 4.42 ct; size: 10.19 | 10.18 | 7.45 mm; shape: square cushion; colour: colourless; clarity: eye clean; cut: excellent; treatment: none.
Notes

Very clean specimen; design ‘Quadrille’ by Edith B. Strout, excellent cut by Tan Pen.

Other specimens
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More information from ‘Classification’


A transparent colourless variety of quartz.