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On Thursday, November 20, 1980, the drill assembly of a Texaco contracted oil rig, just offshore of the salt dome-caused Jefferson Island (itself in the east southeast section of Lake Peigneur), pierced an inactive third level of the Diamond Crystal Salt Company salt mine. The hole produced a vortex that drained the lake into the mine, filling ...
Bryce Brothers diamond optic, multi knob blown crystal stemware. Bryce Brothers, also known as Bryce Brothers Company and Bryce Brothers Company Inc., was a glass manufacturing company originating in 1850 at Birmingham, Allegheny County, Pennsylvania that changed names and partnerships until being purchased by the Bryce family when it was moved to Mount Pleasant, Pennsylvania, where they ...
As the diamond was grown, the carbon atoms within the molten metal would crystallize on top of the seed diamond. In Gemesis' process, a yellow gem-quality diamond up to 3 carats (600 mg) in size would grow inside the resolidified metal cylinder. The metal cylinder would then be dissolved in mild acid and the diamond crystal would be extracted.
The company's controlled manufacturing processes enabled it to produce very high-quality, high-purity, high volume, single-crystal colorless, near colorless and fancy colored diamonds to suit a variety of industrial and gemstone applications. [2]
Diamond is the hardest material on the qualitative Mohs scale. To conduct the quantitative Vickers hardness test, samples of materials are struck with a pyramid of standardized dimensions using a known force – a diamond crystal is used for the pyramid to permit a wide range of materials to be tested. From the size of the resulting indentation ...
Apollo Diamond (defunct, assets sold in 2011 to Scio Diamond) [1] ALTR Created Diamonds [2] De Beers (Lightbox) [3] Diamond Foundry [4] Gemesis (now a non-producing reseller called Pure Grown Diamonds) [5] Scio Diamond Technology Corporation [6] (colorless) Tairus [7] WD Lab Grown Diamonds [8]