Spinelle (noir) Andalousite Some have an optical cat

Some have an optical cat eye phenomenon

Its color is light green in white light (or daylight) and pinkish in incandescent light (candle light)

Its gray and uniform color is suitable for both men and women

Treatment: none

Spinelle (noir) Andalousite Some have an optical catSpinel 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