Diamond - Wikipedia
WEBMost were formed at depths between 150 and 250 kilometres (93 and 155 mi) in the Earth's mantle, although a few have come from as deep as 800 kilometres (500 mi). Under high pressure and temperature, carbon-containing fluids dissolved various minerals and replaced them with diamonds.
Diamant
WEBJoin the Forefront of Oil-Drilling Technology. As oil and gas become more difficult to access, DIAMANT continuously strives to improve drilling tool technology in order to meet today’s challenges. Our top-notch engineers ensure that your drilling tools are optimal for your particular drilling operation.
Natural Diamonds | Diamond Stone – GIA C
WEBAbout Diamond. Diamond forms under high temperature and pressure conditions that exist only about 100 miles beneath the earth’s surface. Diamond’s carbon atoms are bonded in essentially the same way in all directions. Another mineral, graphite, also contains only carbon, but its formation process and crystal structure are very different.
Men's Dance Shoes | Buy Online Now - Diamant
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DIAMOND中文(简体)翻译：剑桥词典 - Cambridge Dictionary
WEBdiamond noun (STONE) Add to word list. B2 [ C or U ] a transparent, extremely hard precious stone that is used in jewellery, and in industry for cutting hard things. 钻石，金 …
VIVIENNE DIAMANT十大入門經典，一次認識巴黎獨創的 ... - ELLE
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Diamond Color | GIA 4Cs
WEBThe correct way to evaluate diamond color is in precise conditions, under controlled lighting, where stones are compared to masterstones with established color grades. Once properly evaluated, color is documented based on the GIA D …
Diamant : histoire, symbolisme et usages - Atelier du Diamant
WEBDec 21, 2023 · Le diamant, éternel et mystérieux, fascine depuis des millénaires par sa beauté et sa dureté sans égal. Depuis son extraction initiale jusqu’à son intégration dans des œuvres de prestige, le diamant a traversé l’histoire en s’entourant de légendes et de symbolisme profond.
Diamant – Wikipedia
WEBDiamant (grekiska αδάμας adamas, oövervinnerlig) är en allotrop av grundämnet kol. Till skillnad från grafit och fulleren (som också består av kol) är den mycket hård. Diamant är en ädelsten och tack vare sin hårdhet använd i industrin som skär- och slipmedel. Oslipade diamanter kallas rådiamanter.
Diamant - Wikipedia
WEBThe Diamant rocket (French for "diamond") was the first exclusively French expendable launch system and at the same time the first satellite launcher not built by either the United States or USSR. As such, it has been referred to as being a key predecessor for all subsequent European launcher projects.