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Gemstones, Minerals & Fossils
Gemstones and Minerals
Ive gone Walbanker style for Sapphires
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<blockquote data-quote="joe" data-source="post: 130389" data-attributes="member: 175"><p>Example: specific gravity for sapphires is 4 as oppose to gold which is 19 therefore your drop angle of the sluice needs to be less. If you use one inch(2.54cm) drop per foot(30.48)for your gold then on sapphires it works out to be (0.52cm) for every 30.5cm. On a 1.2m sluice you would have a 2cm drop.</p></blockquote><p></p>
[QUOTE="joe, post: 130389, member: 175"] Example: specific gravity for sapphires is 4 as oppose to gold which is 19 therefore your drop angle of the sluice needs to be less. If you use one inch(2.54cm) drop per foot(30.48)for your gold then on sapphires it works out to be (0.52cm) for every 30.5cm. On a 1.2m sluice you would have a 2cm drop. [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
Ive gone Walbanker style for Sapphires
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