glaucophane

[ glaw-kuh-feyn ]

noun

a sodium-rich monoclinic mineral of the amphibole family, usually metamorphic.

Origin of glaucophane

¹

First recorded in 1840–50; glauco- + -phane

Words Nearby glaucophane

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use glaucophane in a sentence

glaucophane-eclogites have been met with in Italy and the Pennine Alps.
Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 | Various
Other minerals which have been found in eclogites are bronzite, olivine and glaucophane.
Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 | Various

Scientific definitions for glaucophane

glaucophane

[ glou′kə-fān′ ]

A blue to grayish-blue or bluish-black monoclinic mineral of the amphibole group. Glaucophane occurs as fibrous prisms in schists (especially blueschists) formed by the regional metamorphism of sodium-rich rocks. Chemical formula: Na2(Mg,Fe)3Al2Si8O22(OH)2.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Browse