Rockbridgeite Mineral Gallery

Rockbridgeite: (Fe++,Mn)Fe+++4(PO4)3(OH)5

Comments: Black cruciform twins of rockbridgeite on siderite.
Location: Big Chief mine, Keystone, Pennington County, South Dakota, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Rockbridgeite: (Fe++,Mn)Fe+++4(PO4)3(OH)5  
Stewartite: Mn++Fe+++2(PO4)2(OH)2·8(H2O)

Comments: Pointed, brownish yellow stewartite crystals on massive, dark rockbridgeite.
Location: Hagendorf, Bavaria, Germany. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Rockbridgeite: (Fe++,Mn)Fe+++4(PO4)3(OH)5  
Wilhelmvierlingite: CaMn++Fe+++(PO4)2(OH)·2(H2O)

Comments: Yellow brown crystals wilhelmvierlingite with black rockbridgeite.
Location: Hagendorf South Pegmatite (Cornelia Mine; Hagendorf South Open Cut), Waidhaus, Vohenstrauß, Oberpfalz, Bavaria, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Rockbridgeite: (Fe++,Mn)Fe+++4(PO4)3(OH)5  
Tinsleyite: KAl2(PO4)2(OH)·2(H2O)  
Phosphosiderite: Fe+++PO4·2(H2O)

Comments: Violet botryoidal tinsleyite on bluish-purple botryoidal phosphosiderite on dark, massive rockbridgeite.
Location: Bendada, Guarda, Portugal. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Rockbridgeite: (Fe++,Mn)Fe+++4(PO4)3(OH)5  
Lindbergite: Mn(C2O4)·2(H2O)

Comments: Rare organic mineral - lindbergite (Mn dihydrate oxalate) in white patches on rockbridgeite matrix.
Location: Boca Rica mine, Sapucaia do Norte, Gilileia, Minas Gerais, Brazil. Scale: Spot size 1 mm.
© Tom Loomis / Dakota Matrix