glaucophane


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glaucophane

(glô`kəfān'): see amphiboleamphibole
, any of a group of widely distributed rock-forming minerals, magnesium-iron silicates, often with traces of calcium, aluminum, sodium, titanium, and other elements.
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glaucophane

[′glȯ·kə‚fān]
(mineralogy)
Na2Mg3 Al2Si8 A blue to black monoclinic sodium amphibole; blue to black coloration with marked pleochroism.
References in periodicals archive ?
These units consist of glaucophane, garnet, lawsonite, muscovite, epidote, chlorite, augite, quartz, sphene and zircon.
The results of the stereomicroscopic and XRD analyses of stream sediments showed lawsonite, quartz, garnet, augite, glaucophane, muscovite, epidote and sphene.
Blocks of glaucophane schist are found within serpentinite bodies and are composed of clinozoicite + glaucophane + chlorite + sodic plagioclase, minor titanite and calcite.
Louderback studied the glaucophane and associated schists of the Coast Ranges and cooperated in a study of the effects of the great San Francisco earthquake of 1906.
Maurizio Casazza (Muzzano, Italy, Maurizio.casazza@tin.it) put out about 15 specimens of glaucophane in slabs to 30 cm across, which he personally collected some years ago at Pollone, Piemonte, Italy.
Crossite = Glaucophane, Ferroglaucophane, Magnesioriebeckite, or Riebeckite
[ ] Ferroglaucophane, [Mathematical Expression Omitted], mon., forms a series with Glaucophane, Amphibole group, Can.