glaucophane
[ glaw-kuh-feyn ]
/ ˈglɔ kəˌfeɪn /
noun
a sodium-rich monoclinic mineral of the amphibole family, usually metamorphic.
Words nearby glaucophane
glaucoma,
glaucomatous cataract,
glaucomatous cup,
glaucomatous halo,
glauconite,
glaucophane,
glaucous,
glaucous gull,
glaur,
glave,
glaze
Example sentences from the Web for glaucophane
Other minerals which have been found in eclogites are bronzite, olivine and glaucophane.
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.