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The stone's unique apple green color is due to natural exposure to radioactive materials, as the irradiation of diamonds can produce changes in color. The Dresden Green Diamond has been used to compare natural versus lab-produced green diamonds — it is hoped that it can be used to devise a test to differentiate between naturally green diamonds, which are quite rare, and lab-produced ones.
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The Golconda diamondiferous region is located in the Southern Indian peninsular shield, [2] which was formed during the process of proterozoic and Insular India. [3] The region is spread over 50,000 km 2 (19,000 sq mi), within the sediments of the Krishna-Pennar river basin and Deccan Traps, [2] and contains 120 out of the 150 kimberlite pipes in India. [4]
Dresden Green Diamond; This page was last edited on 22 August 2018, at 18:06 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 ...
The salagrama of Kurma is described as 'raised, round on the surface, and is filled with a disc (like figure). Marked with Kaustubha, it has a green colour' (Part 8: 20.51b-73) Kurma is stated to reside in Vaikuntha (Part 9: 228.19-24); and is one of the 108 names of Vishnu (Part 10: 17.103-117)
Carbonado, commonly known as black diamond, is one of the toughest forms of natural diamond. It is an impure, high-density, micro-porous form of polycrystalline diamond consisting of diamond, graphite , and amorphous carbon , with minor crystalline precipitates filling pores and occasional reduced metal inclusions. [ 1 ]
Due to longstanding pushback and controversial health studies surrounding the ingredient, many processed food manufacturers have already shifted away from using Red Dye No. 3, opting instead for ...
Diamond is extremely strong owing to its crystal structure, known as diamond cubic, in which each carbon atom has four neighbors covalently bonded to it. Bulk cubic boron nitride (c-BN) is nearly as hard as diamond. Diamond reacts with some materials, such as steel, and c-BN wears less when cutting or abrading such material. [4]