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Spinel is a hard glassy mineral occurring as octahedral crystals of variable color and consisting chiefly of magnesium and aluminum oxides. It has a refractive index of 1.712 – 1.736 and a hardness of 7.5 - 8 on the Mohs scale. This piece of Spinel from Tunduru, Tanzania weighs 2.70 cts measures 7x7x6mm and is eye clean.

SPINEL 2.70 CTS 7X7X6MM

SKU: SPEL#4
$150.00 Regular Price
$45.00Sale Price
Out of Stock

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