Garnet

Garnets are a group of closely related minerals that come in almost every color. The most famous and common are the red spessartite and rhodolite garnets but almost any color is available. Among the rarer types is tsavorite which is a beautiful green.

Garnet is the birthstone for January

Mineral: Garnet group

Refractive index: 1.714 - 1.888

Specific gravity: 3.47 - 4.15

MOHS Hardness: 6.5-7.5