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diallage

American  
[dahy-uh-lij] / ˈdaɪ ə lɪdʒ /

noun

Mineralogy.
  1. a variety of diopside with a laminated structure, found in gabbro and other igneous rocks.


diallage British  
/ ˈdaɪəlɪdʒ /

noun

  1. a green or brownish-black variety of the mineral augite in the form of layers of platelike crystals

"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

Etymology

Origin of diallage

1795–1805; < French < Greek diallagḗ interchange, change, noun derivative from base of diallássein make an exchange, equivalent to di- di- 3 + allássein to change, exchange


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:

It contains no garnet or amphibole, but metalloid diallage disseminated in the mass.

From Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 3 by Alexander von Humboldt

I found in it a few garnets, but no metaloid diallage.

From Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 by Thomasina Ross

In both these states I could not discover in it either garnets, hornblende, or diallage.

From Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2 by Alexander von Humboldt

Essentially it is a crystalline-granular compound of plagioclase, generally Labradorite and diallage.

From Volcanoes: Past and Present by Edward Hull

In some gabbros and norites reaction rims of fibrous hornblende are found around both hypersthene and diallage where these are in contact with felspar.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" by Various

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