Crossite
| 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 |
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.
Crossite is named after Charles Whitman Cross, an American USGS petrologist.
References
External links
This article is issued from Wikipedia - version of the 7/1/2014. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.