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Cathodoluminescence picture of a diamond, taken in the scanning electron microscope Early diamond identification checks integrated a scratch take a look at 銀座白石 depending on the superior hardness of diamond. This check is destructive, for a diamond can scratch another diamond, and is never utilized these days. As an alternative, diamond identification depends on its remarkable thermal conductivity. Digital thermal probes are broadly Utilized in the gemological centers to separate diamonds from their imitations.
Diagram of a volcanic pipe Geological proof supports a model wherein kimberlite magma rises at 4–twenty meters for each second, developing an upward path by hydraulic fracturing of your rock. As being the stress decreases, a vapor phase exsolves in the magma, which helps you to maintain the magma fluid.
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合成鑽石試圖利用複製高溫高壓的環境施加於晶種上，人工製造鑽石的生長現象。
最後，提交評語 旅程結束後，客人們將他們的住宿體驗告訴我們。我們會驗証所有評語的真實性並檢查是否包含不雅語言，然後再添加到我們的網站上。
碳有數種已知的同素異形體：不定形碳 ，碳奈米泡沫 ，金剛石，藍絲黛爾石 ，蠟石 ，聚合鑽石奈米棒 ，環碳石墨烯、石墨和富勒烯。在熱力學上，金剛石的穩定性低於石墨，可自發轉變為石墨，但常溫常壓下這一轉變的速度很慢，可以忽略不計，因此鑽石得以穩定存在。自然界形成的金剛石一般形成於地球內部高溫高壓的環境，後來被火山噴發等地殼構造運動帶到地表，因此許多金剛石發現在火山附近。現代工業可在高溫高壓下生產金剛石，稱為「合成金剛石」。
鑽石的色澤會因為化學上的雜質而有所偏差。完全純正的鑽石應該是透明無色的。鑽石偏向不同的顏色會影響它的價值。絕大部分的鑽石都是因為帶有氮原子而偏黃。白鑽越偏黃，價值便越低。但是偏粉紅或藍的鑽石價格卻較高。顏色強烈偏向粉紅或藍的鑽石可能價值連城。
One confront of an uncut octahedral diamond, exhibiting trigons (of favourable and negative relief) formed by organic chemical etching Diamonds arise most frequently as euhedral or rounded octahedra and twinned octahedra often called macles. As diamond's crystal structure features a cubic arrangement in the atoms, they've got quite a few aspects that belong to your dice, octahedron, rhombicosidodecahedron, tetrakis hexahedron, or disdyakis dodecahedron.