Gemmology
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Amethyst — specimen 0091, photo © NMNHS
Amethyst — specimen 0091, photo © NMNHS

Amethystspecimen 0091

Origin

East Africa
Zambia
Amethyst — specimen 0091, locality map
Data

Weight: 2.21 ct; size: 8.88 | 8.86 | 5.60 mm; shape: round; colour: medium dark violetish blue; strong; clarity: eye clean; cut: very good; treatment: none.
Notes

Very clean specimen; very good mixed style cut. Source: David Weinberg, Multicolour Gems Ltd.

Other specimens
Amethyst — specimen 0675Amethyst — specimen 0676Amethyst — specimen 0678Amethyst — specimen 0679Amethyst — specimen 0681Amethyst — specimen 0703Amethyst — specimen 0706Amethyst — specimen 0467Amethyst — specimen 0085Amethyst — specimen 0612Amethyst — specimen 0344Amethyst — specimen 0402Amethyst — specimen 0224Amethyst — specimen 0368Amethyst — specimen 0193Amethyst — specimen 0199Amethyst — specimen 0232Amethyst — specimen 0169

More information from ‘Classification’


A violet variety of quartz. The colour is caused by iron impurities in the 10s to 100s parts per million range.