Definition of kimberlite in English:

kimberlite

Pronunciation /ˈkimbərˌlīt/ /ˈkɪmbərˌlaɪt/

See synonyms for kimberlite

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.’
    • ‘So Rankin Inlet wasn't surprised when prospectors exploring the area recently announced a promising find of kimberlite, a volcanic rock that often contains diamonds, 20 km from town.’
    • ‘Aggressive exploration has confirmed the presence of diamond-bearing kimberlite pipes scattered over a considerable area extending into adjoining Alberta, Saskatchewan, and Nunavut.’

Origin

Late 19th century from Kimberley+ -ite.