Bismuth Crystal
A specimen of Bismuth Crystal at 10 pounds total .It will come with a label for the item telling you all about it .Its free postage and packing in the Uk only- for this piece .It could be a colourful present for someone and will come well packed in a jiffy bag. Description --Formation Of Bismuth Crystals.The crystals form floating in super cooled bismuth melt.Actual growing time is about 5-10minutes.The rapid growth is responsible for the hollow forms,which are so called "hopper "crystals.The iridescent metallic colours are caused by light scattering on the thin layer of bismuth melt and are in contact with the air.The brightness and colour intensity depend on the purity of the bismuth used,which has great influence on the quality of the crystals.Regular bismuth produces crystals with blue/purple colours.
