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ATHENA

MINERALOGY

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Mineral: HASTINGSITE
Formula: NaCa2(Fe2+4Fe3+)Si6Al2O22(OH)2
Crystal System: Monoclinic
Group: Amphibole supergroup, with (OH,F,Cl) dominant. Ca subgroup. Hastingsite group
IMA Number: 2012 s.p.
References: MM 41 (1977), 43; HB2/1 (1995); MM 71 (2007), 651
Type Locality: Dungannon Twp., Hastings County, Ontario, Canada

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