Spinelle (noir) - Lot de 4 Saphir / Sapphire This quartz contains pretty blue

This quartz contains pretty blue inclusions which appear as floating clouds and give texture and depth to the stone

in addition to being the birthstone for the month of November

Shape: Round bufftop

it can also be oval

Hardness: 6

Spinelle (noir) - Lot de 4 Saphir / Sapphire This quartz contains pretty blueSpinel 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