glaucophane


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Related to glaucophane: Omphacite, Riebeckite, tremolite, glaucophane schist, Lawsonite

glauc·o·phane

 (glou′kə-fān′)
n.
A bluish-gray or bluish-black monoclinic mineral of the amphibole group.

[German Glaukophan : Greek glaukos, bluish gray + Greek -phanēs, appearing (from phainesthai, phan-, to come to light, appear; see bhā- in Indo-European roots).]
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Blocks of glaucophane schist are found within serpentinite bodies and are composed of clinozoicite + glaucophane + chlorite + sodic plagioclase, minor titanite and calcite.