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Diamond Manufacturers' Associa­tion PDF Print E-mail
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Tuesday, 18 September 2007

diamond Manufacturers' Associa­tion. The official organization of diamond manufacturers in England.

Diamond Manufacturers' Associa­tion of Puerto Rico. An organization of diamond-cutting ffrms in Puerto Rico.

Diamond Mining & Utility (S.W.A.), Ltd. The firm that holds the alluvial diamond-mining concession along the coast of South-West africa ad­jacent to that of Consolidated Diamond Mines of South-West Af­rica, Ltd. It extends north from 26° south latitude to the Tropic of Cap­ricorn. The concession is worked by Industrial Diamonds of South Africa (1945), Ltd. See south-west africa. diamond mortar. A small steel mor­tar used for pulverizing diamond for industrial applications. A simple type of mortar consists of a cylindrical steel block with a hollow insert of hardened steel into which fits a pes­tle with a rounded end, the diamond dust being prevented from escaping along the sides by a rubber sealing ring. Automatic mechanical mortars are used in larger crushing opera­tions.

Diamond News and S.A. Jeweller, The. A monthly trade journal that

 
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