Dictionary of Gems and Gemology by Mohsen Manutchehr-Danai

By Mohsen Manutchehr-Danai

This quantity bargains a one-stop connection with any subject facing gemstones, gemology, jewellery and similar sciences. This revised and extended moment includes approximately 25,000 entries, a few 9,000 greater than the 1st variation, that are now complemented by way of greater than 1,500 charts, diagrams and figures. It presents encyclopedic assurance of phrases, ideas, humans, laboratories, acronyms and locations concerning gemstones and gemology.

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Dilute with water, alcohol, and ether. The liquid is useful as a test for cellulosic plastics, which softens under its influence. Also called pear oil and isoamyl acetate. Anabar River; an alluvial diamond mine north of Mirnyi of Sakha, Yakutia, the Russian Federation, CIS. Anacreon Emerald; among Hope Collection was an emerald of 16 × 14 mm engraved with an owl with a human face. Now on display at Townshed Collection of the Victorian Albert Museum, London. anacona ruby; a misleading term for rose quartz.

Amber lac; a commercial term for amber pitch powder dissolved in turpentine or linseed oil. Also called amber varnish. amberland; a term used for amber-bearing countries along the Baltic seashore, Europe. amber lord; a term used in the fifteenth century because the value of amber increased. It was valued for making rosary beads and it controlled the whole market. amber mica; same as phlogopite. amber morphology; common forms of natural amber are drop shapes and stalactites, which was exuded from prehistoric trees during of production of resins.

After Klockman-Ramdohr-Strunz Formula: CaSO4. Usually massive. System: orthorhombic. Diaphaneity: Transparent. Colors: Colorless to slightly colored. 616. 044. . 013. 98. H: 3. Found in Italy, and Mexico. Vulpinite is a scaly, granular variety of anhydrite. Also called cube spar. Used for ornamental purposes. 37 anhydrous; without water, not containing hydrogen, or water, in its composition. Often applied to salts without water. ani; a Sri Lankan (Ceylonese) commercial term, for pearls of fine orient, almost perfectly spherical in shape.

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