Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:DEERITE
Formula:(Fe2+,Mn)6(Fe3+,Al)3Si6O20(OH)5
Crystal System:Monoclinic pseudo Orthorhombic
Strunz Nr:8/F.16-10
Group:Howieite Group
References:MM 43 (1979), 251; HB2/1 (1995)
Type Locality:Laytonville quarry, Laytonville, Mendocino Co., California, USA

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