Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:BROWNMILLERITE
Formula:Ca2(Al,Fe3+)2O5
Crystal System:Orthorhombic
Strunz Nr:4/A.07-10
References:NJMM (1964), 22; HB3 (1997); EJM 17 (2005), 623
Type Locality:Ettringer Bellerberg, Mayen, Laacher See Area, Eifel, Rheinland-Pfalz, Germany

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