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Crossite
Rare silicate mineral / From Wikipedia, the free encyclopedia
Crossite is an inosilicate double chain sodic amphibole and is a rare silicate mineral belonging to the riebeckite group. It is considered an intermediate between the amphiboles glaucophane and magnesioriebeckite, which form a series.[1] IMA status: discredited 1997.
Quick Facts General, Category ...
Crossite | |
---|---|
![]() Crossite from California | |
General | |
Category | Amphibole – Inosilicates |
Formula (repeating unit) | Na2(Mg,Fe)3(Al,Fe)2Si8O22(OH)2 |
Identification | |
Color | blue, blue-green |
Mohs scale hardness | 6 |
Streak | light blue |
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Crossite is named after Charles Whitman Cross, an American USGS petrologist.