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ATHENA MINERALOGY |
Mineral: | FERROBARROISITE |
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Name: | Ferro-barroisite |
Formula: | ▢(CaNa)Fe2+3AlFe3+Si7AlO22(OH)2 |
Crystal System: | Monoclinic |
Group: | Amphibole supergroup, with (OH,F,Cl) dominant. Na-Ca subgroup. Barroisite group |
References: | AM 63 (1978), 1023; HB2/1 (1995); CM 35 (1997), 219 |
Comments: | ▢ = vacancy |
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