Spinel

The Spinels of hardness 8 on the Mohs scale come in a variety of many colors( red, pink, purple, blue grey, blue and black). Spinels a gem which is more and more appreciated by the experts and its value increases in vivid colors. Spinels come mainly from Tadjikistan, Tanzania (Mahenge), Burma( Mogok, Namya), Vietnam(Luc Yen), Thaïland,…
Chemical composition Mg Al2 04.

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