Spinel natural cut gemstone

Spinel – a mineral with a rich color range
Spinel is a mineral with the chemical composition MgAl₂O₄, belonging to the group of oxides. It is valued mainly for its hardness (8 on the Mohs scale), brilliance and a wide range of colors – from red, pink and purple to blue or black. For centuries, it was often confused with rubies and sapphires, which increases its historical importance.

Sri Lanka – a source of quality spinels
Sri Lanka (Ceylon) is one of the most important sources of spinels in the world. The spinels here are characterized by high purity and distinctive colors, which make them sought after by collectors and jewelers. The most valued are the deep red and pink spinels resembling rubies.

History and uses of spinel
Spinel was often set in crown jewels in the past, and only modern mineralogy distinguished it from ruby. Today, it is one of the gemstones with increasing popularity due to its beauty, durability and brightly colored varieties.

Spinel Identification

Chemical Formula: MgAl₂O₄

Color: red, pink, blue, purple, black

Crystal Appearance: octahedral

Crystal System: cubic

Hardness: 8 (Mohs Scale)

Luster: vitreous

Cleavage: none

Scratch: white

Density: 3.5 – 4.1 g/cm³