Bismuth Crystals (Bism1)

This is a man made attractive and fascinating crystal group. Bismuth has a (for a metal!) low melting point. The molten metal on cooling forms characteristic in tricate steep patterns of crystals. The surface reflects light in  iridescent patterns of various shades of blue, green, pink, silver and gold. Very attractive. The cluster has a maximum length of 66mm and weighs 95gm.