diallage

[ dahy-uh-lij ]

noun

, Mineralogy.

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

diallage

/ ˈdaɪəlɪdʒ /

noun

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

Word History and Origins

Origin of diallage¹

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

Word History and Origins

Origin of diallage¹

C19: from Greek diallagē interchange

Example Sentences

Also, in minute veins, in detached masses of diallage and serpentine rocks, on the west shore of Lake Michigan.

From Project Gutenberg

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

From Project Gutenberg

It has compact Felspar for its base, in which are imbedded crystals both of Diallage and Hornblende.

From Project Gutenberg

Gabbro, gab′ro, n. a rock composed of feldspar and diallage—also Euphotide.

From Project Gutenberg

Diallage, an altered form of the mineral augite, with a lamellar structure, and a submetallic lustre on its planes of separation.

From Project Gutenberg