7.1" Polished Black Jade (Actinolite) Slab - Western Australia

This is a cut and polished section of a type of stone that occurs in Western Australia at Ninghan, approximately 200 miles north of Perth in the Murchison region. The trade name for the stone is "Black Jade", but it isn't actually jade. Tests show that the primarily mineral in this stone is actinolite, which is not a jade variety but can be an essential part of nephrite.

It comes with an acrylic display stand.

Actinolite is a fibrous mineral with the chemical formula Ca2(Mg,Fe)5Si8O22(OH)2. Chemically, it is very similar to tremolite, though it has more iron than magnesium.

Both actinolite and tremolite contain a form of asbestos, a kind of mineral habit made up of tiny elastic fibers. This habit can be hazardous and should not be brought near the mouth, to avoid inhalation of the fibers. It is also suggested that you wash your hands following handling.
Ninghan, Murchison Region, Western Australia
7.1 x 3.2", up to 0.6" thick