钻石是稀有火成岩（称为煌斑岩和金伯利岩）中偶尔出现的一种成分，其年代测定方法从未令人满意。
Diamonds, an occasional component of rare igneous rocks called lamproites and kimberlites, have never been dated satisfactorily.
研究人员最近发现了金伯利岩矿床，这暗示着钻石的存在。
Researchers recently found kimberlite deposits hinting at the existence of diamonds.
在南非这个以钻石矿而闻名的国家，金伯利岩衬托出了这颗黄钻的美丽。
The igneous rock kimberlite sets off a yellow diamond from South Africa, a country known for its diamond mines.
钻石存在于目前地球上仅有的约600个金伯利岩管中，而其中具有开采价值的屈指可数。
The diamond can be found only within Kimberlite pipes, of which only a handful out of the 600 on earth is worth mining.
钻石，是在深度超过150公里的地幔高压环境下生成的，之后经由称为金伯利岩的火山岩被带到地表。
Diamond are formed under high pressure more than 150 kilometers deep in the Earth's mantle and are brought to the surface mainly by volcanic rocks called kimberlites.
金伯利钻石，1870年，人们在南非发现了孕育钻石的母岩-金伯利岩。从此，“金伯利”成为了钻石的代名词。
Kimberlite diamond: kimberlite-it is parent rock which gestates the diamond. As it was found in Kiimberlite town in South Africa in 1870, it was named after this town accordingly.
金伯利钻石，1870年，人们在南非发现了孕育钻石的母岩-金伯利岩。从此，“金伯利”成为了钻石的代名词。
Kimberlite diamond: kimberlite-it is parent rock which gestates the diamond. As it was found in Kiimberlite town in South Africa in 1870, it was named after this town accordingly.
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