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ATHENA

MINERALOGY

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Mineral:HANCOCKITE
Formula:CaPbAl2Fe3+[Si2O7][SiO4]O(OH)
Crystal System:Monoclinic
Strunz Nr:8/C.23-25
Group:Epidote group
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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