A Text-Book of Precious Stones for Jewelers And the Gem-Loving Public
A Text-Book of Precious Stones for Jewelers And the Gem-Loving Public
Wade, Frank Bertram, 1875-
The book A Text-Book of Precious Stones for Jewelers And the Gem-Loving Public was written by author Wade, Frank Bertram, 1875- Here you can read free online of A Text-Book of Precious Stones for Jewelers And the Gem-Loving Public book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Text-Book of Precious Stones for Jewelers And the Gem-Loving Public a good or bad book?
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The so-called "Cape rubies" of the diamond mines of South Africa are pyrope garnets and some large and fine ones are foimd. The "Arizona rubies" are pyrope garnets, and while seldom of notable size, some are of very fine color, approaching deep rubies, and the color remains attractive by artificial light. Almandite garnet, the "almandine" of the jeweler is less abimdant than pyrope, when of gem quality. Ceylon fiunishes some and India furnishes perhaps more. Brazil, from its prolific gem gravel...s at Minas Novas, supplies good almandite, and smaller quantities are found in many different localities. Hessonite garnet, the cinnamon stone or "hyacinth" (incorrect) of the trade, comes mainly from Ceylon. Andradite garnet, of the variety known as demantoid, from its diamond-like properties, X3 Digitized by VjOOQ IC 194 Precious Stones and which is usually sold under the mis- leading name "olivine "in the trade, comes from the western slopes of the Ural Mountains. Tounnaline. Gem tourmaline comes from Ceylon, from Madagascar, from the Ural Mountains, from Brazil, from Maine, from Connecticut, and from California.
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