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.

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diallage British  

/ ˈdaɪəlɪdʒ /

noun

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

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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

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Example Sentences

See Examples For:

diallage

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

The following minerals produce beads with a small quantity of soda, but with the addition of more produce slags: tabular spar, diallage, hypersthene, epidote, zoisite.

From A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations by Anonymous

The serpentine is sometimes of an esquillous, sometimes of a conchoidal fracture: this was the first time I had found metalloid diallage within the tropics.

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

They consist in great part of diallage rocks and serpentine, and of an amygdaloid with calcareous kernels, and a base of serpentine.

From The Student's Elements of Geology by Sir Charles Lyell

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