Natural Magnesite Beads Strands, Dyed, Cube, Medium TurquoiseSize: about 4~5mm long, 4~5mm wide, 4~5mm thick, hole: 1mm, about 90pcs/strands, 16.1 inch (41cm).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.