The Definitive Guide to 介指
The Definitive Guide to 介指
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鑽石分為一型和二型兩種，這主要是根據它是否含有N元素：一型含；二型不含。而藍色的鑽石是二B型的，是半導體。
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Find out more regarding how lab diamonds are made, how lab diamonds Evaluate to purely natural diamonds And the way lab diamonds compare to moissanite.
Most important diamond producing nations Diamond is often a good form of the element carbon with its atoms arranged inside a crystal construction referred to as diamond cubic. Diamond being a method of carbon is tasteless, odourless, strong, brittle strong, colourless in pure form, a very poor conductor of energy, and insoluble in h2o. One more stable sort of carbon known as graphite will be the chemically steady kind of carbon at area temperature and strain, but diamond is metastable and converts to it at a negligible charge less than Individuals situations.
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As with any substance, the macroscopic geometry of a diamond contributes to its resistance to breakage. Diamond provides a cleavage plane and is also hence more fragile in a few orientations than others. Diamond cutters use this attribute to cleave some stones just before faceting them.[36] "Impression toughness" is amongst the key indexes to measure the quality of artificial industrial diamonds.
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Unsustainable diamond mining in Sierra Leone. Documentary as Section of the Vrinda Challenge for Wikibooks In a number of the extra politically unstable central African and west African countries, groundbreaking teams have taken control of diamond mines, making use of proceeds from diamond income to finance their functions. Diamonds sold by way of this method are known as conflict diamonds or blood diamonds.[131]