- a variety of diopside with a laminated structure, found in gabbro and other igneous rocks.
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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Examples from the Web for diallage
Also, in minute veins, in detached masses of diallage and serpentine rocks, on the west shore of Lake Michigan.
Bronz′ing, the process of giving the appearance of bronze; Bronz′ite, a lustrous kind of diallage.
Gabbro, gab′ro, n. a rock composed of feldspar and diallage—also Euphotide.
Diallage, an altered form of the mineral augite, with a lamellar structure, and a submetallic lustre on its planes of separation.The New Gresham Encyclopedia
Essentially it is a crystalline-granular compound of plagioclase, generally Labradorite and diallage.Volcanoes: Past and Present
- a green or brownish-black variety of the mineral augite in the form of layers of platelike crystals
C19: from Greek diallagē interchange
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