PRECIOUS STONES FOR JEWELERS and THE GEM-LOVING PUBLIC
A TEXT-BOOK OF PRECIOUS STONES FOR JEWELERS and THE GEM-LOVING PUBLIC
Your complete guide to precious stones..
….Precious Stones Distinguished by their Properties. One precious stone is best distinguished from another just as substances of other types are distinguished, that is to say, by their properties. For example, salt and sugar are both white, both are soluble in water, and both are odorless. So far the italicized properties would not serve to distinguish the two su
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