单词	kimberlite
释义	kimberlite /ˈkɪmbəlʌɪt / noun [mass noun] Geology A rare, blue-tinged, coarse-grained intrusive igneous rock sometimes containing diamonds, found in South Africa and Siberia. Also called blue ground.It was suggested by some readers that the matrix for the featured diamond crystal from the Jagersfontein mine looked suspiciously like the rock eclogite rather than kimberlite.... Diamond is obtained from volcanic pipes composed of kimberlite or lamproite, rocks that are found only in cratons, very old stable areas of the Earth's crust. Lamproite is also a mantle-derived ultramafic rock that differs from kimberlite in bulk chemistry, being richer in silicon and poorer in aluminum and iron. Origin Late 19th century: from Kimberley + -ite1.
随便看	misappreciation misapprehend misapprehendingly misapprehension misapprehensive misappropriate misappropriately misappropriation misarrange misarranged misarrangement misarray misarticulation misascription misassign misassimilation misattribute misattribution misaunter misaward misawarding misbaptize misbegotten misbehave misbehavior

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