Museum-grade sample. | |||
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| Museum-grade sample. In early 2004 Max Whitby and I started selling individual element samples identical or similar to the samples we use in the museum displays we build. These are top-quality samples presented in attractive forms appropriate to the particular element. They are for sale from Max's website and also on eBay where you will find an ever-changing selection of samples (click the link to see the current listings). This "crystal nest" is formed by allowing a cup of the molten metal to half-solidify, then pouring the liquid center off. Different metals form surprisingly diverse types of crystals using this very simple technique. The size and shape of the crystals is very sensitive to the purity of the material: This bullet lead is relatively low purity and therefor forms relatively small crystals: As a rule the higher the purity, the larger the crystals, with the most spectacular example being bismuth of 99.99% or better purity. Source: Theodore Gray Contributor: Theodore Gray Acquired: 6 March, 2004 Text Updated: 11 August, 2007 Price: See Listing Size: 3" Purity: >99% Sample Group: RGB Samples | |||
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