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ATHENA

MINERALOGY

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Mineral: JOESMITHITE
Formula: PbCa2(Mg,Fe2+,Fe3+)5Si6Be2O22(OH)2
Crystal System: Monoclinic
Group: Amphibole supergroup, with (OH,F,Cl) dominant. Ca subgroup. Hornblende group
IMA Number: 2012 s.p.
References: Arkiv Min. Geol. 4 (1968), 487; AM 73 (1988), 843; HB2/1 (1995)
Type Locality: Rämsorten, Långban (Langban) mine, Bergslagen ore distr., Filipstad, Värmland (Varmland, Wermland), Sweden
Comments: Structurally related to the Amphibole Group.

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