News — Black Spinel

What You Need to know about Black Spinel

Posted by Carla Grimaldi on

BLACK SPINEL There happen to be several black gemstones, but Black Spinel is considered to be a premier one. Thanks to its hardness and uniform nature, with a high reflectance and lack of cleavage, black spinel has been an excellent gemstone. It has been often called "Black Sapphire". Miners here often call it Blackjack and regard it as an indicator of good sapphire being present in the area. Depending on its quality, its blackness can go from opaque to translucent. Black Spinel has a isometric crystal system and has a hardness rate of 7.5-8.0 mohs. Black Spinel as a protection...

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