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Barroisite mineral information and data Dakota Matrix Minerals

Barroisite is a rare mineral that occues in blueschist facies metamorphic rocks Localities include in the USA Wales and Norway among only a few others

Barroisite Handbook of Mineralogy

Barroisite NaCa Mg Fe2 3Al2 Si7Al O22 OH 2 c ○2001 Mineral Data Publishing version 1 2 Crystal Data Monoclinic Point Group 2 m As rims on or

Barroisite Mineral Data

Name Pronunciation Barroisite Pronunciation Say BARROISITE Barroisite Image Click Here for Larger Barroisite Image in a New Browser Window Images

Barroisite Mineral information data and localities Mindat

Barroisite is defined as a barroisite group member with Mg gt Fe2 and Al gt Fe3 in the C position Barroisite has been redefined in the 2012 Amphibole

Composition of amphibole from a amphibolites and b

For clarity some analyses with sodic calcic compositions magnesiokatophorite and barroisite have not been differentiated from calcic amphiboles It should be