Extremely Rare Grandidierite Cut Stone From Madagascar - 0.43 Carats minerals which is a mix of

which is a mix of feldspar

dioptase has been called "emerald copper" because of its color

This is a fine black Melanite Garnet (black variety of Andradite) crystal from Mali in great condition

Garnet is untreated and not enhanced

A really nice rare Iolite tumbled stone from Tanzania

Extremely Rare Grandidierite Cut Stone From Madagascar - 0.43 Carats minerals which is a mix ofDescription: This is one of the rarest minerals in the world, a fine greenish blue Grandidierite cut stone from Madagascar. It has very good transluscency. Fine specimen, and is considered one of the 10 rarest gemstones based on numerous articles. Location: Mandrare, Betroka, Madagascar Size: 5x5 Millimeters Weight: 0. 43 Carats