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ATHENA

MINERALOGY


Search Mineral Group: Howieite group

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Mineral Formula Group System
DEERITE (Fe++,Mn)6(Fe+++,Al)3Si6O20(OH)5 Howieite group M ps O
HOWIEITE Na(Fe++,Mn)10(Fe+++,Al)2Si12O31(OH)13 Howieite group A
TANEYAMALITE Na(Mn++,Mg,Fe++)12Si12(O,OH)44 Howieite group A
JOHNINNESITE Na2Mn++9(Mg,Mn++)7(OH)8(AsO4)2(Si6O17)2 Howieite group A

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