Delicate, Virginal gem Moonstones: Child of the Dawning Day
August 22nd, 2008 at 3:40am |
For the first time we encounter in this delicate, virginal gem, a gemstone from the ranks of the rock-forming feldspars. Taken all together as a group, the feldspars are the most widely distributed mineral association. Their chemical composition divides them into three different combinations of calcium, sodium, and potassium coupled with alumina and silica, all [...]
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