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blue ground |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.02 sec. |
kimberliteor blue groundDark, heavy, often fragmented igneous rock that may contain diamonds in the rock matrix. Kimberlite is a mica peridotite, an ultrabasic rock type with a complex and often highly altered mineral composition. It occurs in the Kimberley district of South Africa and the Kimberley and Lake Argyle regions of Australia, as well as near Ithaca, N.Y. blue ground [¦blü ‚grau̇nd] (geology) The decomposed peridotite or kimberlite that carries the diamonds in the South African mines. Strata of the coal measures, consisting principally of beds of hard clay or shale. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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From the stairs, they went into the drawing-room, which was a large, bright room, decorated with a somewhat startling though cheerful paper of a blue ground. |
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