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Dating from the Late Cretaceous
Fabulously detailed ‘desert roses’
Lightly polished
Hainosaurus
Found near the Brown Banks in the North Sea
Bismuth crystals ammonete Dating from the Late CretaceousBismuth is a semi metal element used in all manner of industrial and pharmaceutical products. This bismuth has been found in its non crystallised, grey silver form, heated until molten and then cooled to naturally allow the bismuth to form into its characteristic cubic crystals. The iridescent rainbow colour is a result of oxidisation as the stair step crystals cool. These mind blowing crystals are made in the UK. Length: 5cm Height 5cm Depth 5cm
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