Natural Magnesite Beads Strands, Dyed, Cube, Dark TurquoiseSize: about 8mm long, 6mm wide, 6mm thick, hole: 1mm, about 47pcs/strand, 14.84 inch (37.7cm).â This stone is from xinjiang, it is known in the trade as Turquoise because of its blue-green hues(dyed treated), similar to turquoise in appearance.