Gemmology
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Colour change garnet — specimen 0120, photo © NMNHS
Colour change garnet — specimen 0120, photo © NMNHS

Colour change garnetspecimen 0120

Origin

East Africa
Madagascar, Toliara, Androy, Bekily
Colour change garnet — specimen 0120, locality map
Data

Weight: 0.61 ct; size: 5.60 | 4.07 | 3.11 mm; shape: oval; colour: medium very strongly greenish blue; slightly greyish; clarity: eye clean; cut: very good; treatment: none.
Notes

Very clean specimen; very good mixed style cut. The colour change is mainly caused by relatively high amounts of vanadium (Schmetzer & Bernhardt, 1999). Source: David Weinberg, Multicolour Gems Ltd.

Other specimens
Colour change garnet — specimen 0272

More information from ‘Classification’


A variety of garnet from the pyrope-spessartine series with mixed composition. Exhibits colour change in daylight and in artificial light.