Hematine (also magnetic hematite, hemalyke or hemalike) is a man made material used very widely in jewellery. Made from iron oxide it can be magnetised is the user so requires. As it is an artificial stone it can and often is coloured elaborately.
These coloured hematine are sold in 40cm lengths and the stones are 4mm in diameter. There are approx. 100 beads on a string, This teal colour is a metallic blue green colour.