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cummingtonite

The Columbia Encyclopedia, Sixth Edition | Date: 2008

cummingtonite : see amphibole .

Author not available, CUMMINGTONITE., The Columbia Encyclopedia, Sixth Edition 2008



The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press

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The Mineralogical Record; 5/1/1998; Mandarino, Joseph A.; 3654 words ; ... 22][(OH).sub.2], orth., dimorph. with Cummingtonite, forms a series with Ferro-anthophyllite ... Magnesioriebeckite, or Riebeckite 47 Cummingtonite: change the entry to: [ ] Cummingtonite, [ ][Mg.sub.7][Si.sub.8][O.sub.22][(OH ... Read more

Related entries from encyclopedias, dictionaries, and thesauruses

amosite
Britannica Concise Encyclopedia Variety of the silicate mineral cummingtonite, which is a source of asbestos. Cummingtonite is an amphibole mineral, an iron and magnesium silicate that occurs in metamorphic rocks in the form of long needlelike, fibrous crystals. amosite amosite amosite Read more
amphibole
The Columbia Encyclopedia, Sixth Edition ... are found both in igneous and metamorphic rocks. The commonest form is hornblende; other species include anthophyllite, cummingtonite, tremolite, actinolite, riebeckite, and glaucophane. A variety of jade, called nephrite, consists of actinolite in a finely ... Read more