crystals have a hexagonal prismatic habit, they are semitransparent or transparent and contain numerous fractures and inclusions. The best stones have a velvety deep green colour. In general, the crystals are not large, but may reach 1.5 cm in length. Rare crystals pf 3 to 5 cm are considered as very large. Faceted stones generally weigh up to 1.5 - 2 ct.
Ref: E.Ya.Kievlenko, Geology of gems, 2003, p. 86
Gem list contains entries from all listed localities in region.
Gemstones from India by Colour
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Localities in this Region