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MINERALOGY

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Mineral: FLUORORIEBECKITE
Name: Fluoro-riebeckite
Formula: ▢Na2(Fe2+3Fe3+2)Si8O22F2
Crystal System: Monoclinic
Group: Amphibole supergroup, with (OH,F,Cl) dominant. Amphibole Na subgroup. Riebeckite group
IMA Number: 2012 s.p.
References: CM 16 (1978), 187
Type Locality: Pikes Peak, El Paso Co., Colorado, USA
Comments: ▢ = vacancy

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