Crystal Structure: Orthorhombic
Composition: Magnesium Iron Silicate
Hardness:5.5
SG:3.27
RI:1.66-1.67
DR:0.010
Luster:Vitreous
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Enstatite is one of the pyroxene family - a series of magnesium to iron
rich silicates. Crystals occur as short prisms, but are rare: most gem
quality material is faceted from rolled pebbles. Cuttable enstatite varies
in color from a gray to yellowish green or olive green, to an iron rich
brownish green. A brilliant emerald green variety, colored by chromium,
also occur.
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