Augite

Identification
Colour	Black, brown, greenish, violet-brown
Streak	Greenish-white
Luster	Vitreous, resinous to dull
Hardness	5-6,5
Cleavage	Good {110}
Fracture	Uneven to conchoidal
Сrystal system	Monoclinic

Uses: Transparent augites containing dendritic patterns are used as gems and ornamental stones known as shajar in parts of India.

Deposits: Augite Mine located in the Urals, the Kola Peninsula, Kamchatka, Siberia, Magadan, Yakutia and Karelia.