Sapphirine from a mica pegmatite in Africa. Very rare from a find in the early 1990s. Great size on this crystal, good form too.
Dimensions (millimeters): 15 x 15 x 10
Dimensions (inches): .6 x .6 x .4
Origins: Anosy, Toliara, Madagascar
Chemistry: (Mg,Al)8(Al,Si)6O20, rare as a well formed crystal.
Sapphirine is an uncommon silicate mineral that owes it's unusual name to the fact that its color range can overlap that of Sapphire. Thumbnail specimen, housed in small acrylic museum display box.
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