n. Mineral. a rare igneous blue-tinged rock sometimes containing diamonds, found in South Africa and Siberia. Also called blue ground (see BLUE(1)).
[ Kimberley in S. Africa ]
n. Mineral. a rare igneous blue-tinged rock sometimes containing diamonds, found in South Africa and Siberia. Also called blue ground (see BLUE(1)).
[ Kimberley in S. Africa ]
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012