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[trem-uh-lahyt] /ˈtrɛm əˌlaɪt/
noun, Mineralogy.
a white or grayish variety of amphibole, Ca 2 Mg 5 Si 8 O 22 (OH) 2 , usually occurring in bladed crystals.
Origin of tremolite
1790-1800; named after Tremola, valley in Switzerland; see -ite1
Related forms
[trem-uh-lit-ik] /ˈtrɛm əˈlɪt ɪk/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for tremolite
Historical Examples
  • The true asbestos, however, he says, is a fibrous variety of tremolite or hornblende.

    Asbestos Robert H. Jones
  • The tremolite occurs in white crystals, about a quarter inch in width and from a half to three inches in length.

  • tremolite is a white to light gray silicate of lime and magnesia found especially in metamorphic limestones.

    Geology William J. Miller
British Dictionary definitions for tremolite


a white or pale green mineral of the amphibole group consisting of calcium magnesium silicate. When occurring in fibrous habit, it is used as a form of asbestos. Formula: Ca2(Mg,Fe)5Si8O22(OH)2
Word Origin
C18: from Tremola, name of Swiss valley where it was found + -ite
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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