from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A rock formation in South Africa containing peridotite, in which diamonds are formed.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A variety of peridotite containing a high proportion of carbon dioxide; often contains diamonds.
from The Century Dictionary and Cyclopedia
- n. In petrography, a dense porphyritic peridotite, occurring at Kimberley, South Africa, partly serpentinized with phenocrysts of olivin and with a few of biotite, bronzite, ilmenite, perovskite, and pyrope.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a rare type of peridotite that sometimes contains diamonds; found in South Africa and Siberia
After Kimberley, a city in central South Africa.(American Heritage® Dictionary of the English Language, Fourth Edition)
Based on the name of the South African town of Kimberley where the mineral was first found. (Wiktionary)