Rock crystal — specimen 0539, photo © NMNHS
Rock crystal — specimen 0539
no precise locality [Africa]
Weight: 5.71 ct; size: 15.71 | 7.19 | 5.56 mm; shape: octagon; colour: colourless; clarity: eye clean; cut: fair; treatment: none.
Very clean specimen; mixed style cut with large window.
More information from ‘Classification’
A transparent colourless variety of quartz.