ATHENA MINERALOGY |
Mineral: | FERRIBARROISITE |
---|---|
Name: | Ferri-barroisite |
Formula: | ▢(CaNa)Mg3Fe3+2Si7AlO22(OH)2 |
Crystal System: | Monoclinic |
Group: | Amphibole supergroup, with (OH,F,Cl) dominant. Na-Ca subgroup. Barroisite group |
References: | MM 42 (1978), 554; CM 35 (1997), 219 |
Comments: | ▢ = vacancy |
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