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tremolite

American  
[trem-uh-lahyt] / ˈtrɛm əˌlaɪt /

noun

Mineralogy.
  1. a white or grayish variety of amphibole, Ca 2 Mg 5 Si 8 O 22 (OH) 2 , usually occurring in bladed crystals.


tremolite British  
/ ˈtrɛməˌlaɪt /

noun

  1. 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: Ca 2 (Mg,Fe) 5 Si 8 O 22 (OH) 2

"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

Other Word Forms

Etymology

Origin of tremolite

1790–1800; named after Tremola , valley in Switzerland; see -ite 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Lefevres says, following scientific analysis of cosmetic talc products, the memo recommended minimising the use of tremolite until substantial evidence showed it had no adverse effects.

From BBC Mar. 18, 2026

Like other claims, Lefevres cites a memo from the 1960s about the use of tremolite in the use of talc products.

From BBC Mar. 18, 2026

One internal document from 1973 allegedly says: "Our baby powder contains talc fragments classifiable as fiber. Occasionally sub-trace quantities of tremolite or actinolite are identifiable…"

From BBC Oct. 15, 2025

Though a private lab in Chicago found trace amounts of tremolite, it declared the amount “insignificant” and the samples “substantially free of asbestiform material.”

From Reuters Dec. 14, 2018

The asbestos formerly used in the arts was generally a fibrous form of some kind of amphibole, like tremolite, or anthophyllite, though occasionally perhaps a pyroxene.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" by Various

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