Axinite
Axinite is an unusual, lustrous stone that is brown, yellow, blue, green or grey. Violet axinite is rare and from Tasmania. It has both transparent and translucent varieties. Axinite is dichroic and is a boro-silicate of aluminium and calcium. It is used only as a mineral specimen and not in jewellery.
Axinite has a hardness of 7 and a specific gravity of 3.3.
