Click on thumbnails for a larger image. Please be patient since some of these pages of thumbnail images take some time to load. These mineral photos are copyrighted by their owners and may not be used without permission.
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
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