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kimberlite

Syllabification: kim·ber·lite
Pronunciation: /ˈkimbərˌlīt
 
/

Definition of kimberlite in English:

noun

Geology
A rare, blue-tinged, coarse-grained intrusive igneous rock sometimes containing diamonds, found especially in South Africa and Siberia. Also called blue ground.
Example sentences
  • 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.

Definition of kimberlite in:

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