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ATHENA

MINERALOGY

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Mineral: HANCOCKITE
Formula: CaPbAl2Fe3+[Si2O7][SiO4]O(OH)
Crystal System: Monoclinic
Group: Epidote supergroup. Epidote group
IMA Number: 2006 s.p.
References: MM 58 (1994), 172; HB2/1 (1995); EJM 18 (2006), 551; L 1 (2016), 62
Type Locality: Franklin, Sussex Co, New Jersey, USA

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