Spinelle (noir) Os de dinausaure / Dinosaur bone gray and colorless

gray and colorless

qui faisait concurrence autrefois aux plus belles pierres précieuses

Pair of malachites crossed by a vein of blue azurite

doré et noir

Dureté : 6 - 7

Spinelle (noir) Os de dinausaure / Dinosaur bone gray and colorlessSpinel is an increasingly popular gemstone. It has a high luster and it comes in a wide variety of colors like red, blue, purple, pink, and black. It has a high hardness (8 on the Mohs scale) and its chemical composition is very close to that of corundum (ruby and sapphire). Since 2016, spinel has been added to peridot as the birthstone for August. Black spinels are a dazzling black and are often used in jewelry. Variety: Spinel Black color