70CTS Coates Sillimanite graduated plain drop beads.
Sillimanite is an aluminosilicate mineral and is named after the American chemist Benjamin Silliman. Sillimanite ranges from colourless to white, brown, yellow, blue, and green in colour and consists of compact fibrous material that have a silky luster.
This 23cm strand contains beads with spacers approximately between 5mm to 10mm in size.
Origin : Africa