Brilliant sapphire cut of Ruby.....
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Silver
Silver usually occurs in massive form as muggets or grains, although it may also be found in wiry, dendritic (tree-like) aggregates. When ...
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Gold The color of gold depends upon the amount and type of impurities it contains. Native gold is typically golden yellow, but in order to ... -
FACETING THE MOST USUAL METHOD of fashion- features, taking into account its color, fashioning a gem is to ...
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