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.
Rosiaite: PbSb+++++2O6 Valentinite: Sb2O3
Comments: Beige crystals of rosiaite with a colorless valentinite prism. Location: Tafone Mine, Manciano, Grosseto, Tuscany, Italy. Scale: Picture size 5 mm. © Thomas Witzke / Abraxas-Verlag
Rosickyite: S
Comments: Orange selenian rosickyite (containing 48.9 wt-% Se). Location: Lichtenberg Mine, Ronneburg U Deposit, Gera district, Thuringia, Germany. Scale: Picture size 8 mm. © Thomas Witzke / Abraxas-Verlag
Rossite: CaV2O6·4(H2O)
Comments: Scaly crystalline rossite on silty sandstone. Location: Buckhorn Mine, San Miguel County, Colorado, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Rosslerite: Mg(AsO3OH)·7(H2O)
Comments: Colorless crystals of rösslerite. Location: Jáchymov (St Joachimsthal), Krusné Hory (Erzgebirge), Západoceský Kraj, Bohemia, Czech Republic. Scale: Picture size 3.5 mm. © Thomas Witzke / Abraxas-Verlag
Rossmanite: [ ]LiAl2Al6(Si6O18)(BO3)3(OH)4
Comments: Pale pink to tan translucent prismatic rossmanite crystals. Location: Near Rozna, Western Moravia, Jihomoravsky, Czech Republic. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Rostite: AlSO4(OH,F)·5(H2O) Clairite: (NH4)2Fe+++3(SO4)4(OH)3·3(H2O)
Comments: Brownish crystals of clairite on white massive rostite. Location: Anna Mine, Alsdorf, Aachen, North Rhine-Westphalia, Germany. Scale: Picture size 5 mm. © Thomas Witzke / Abraxas-Verlag
Rostite: AlSO4(OH,F)·5(H2O)
Comments: White crystals of rostite on a dark matrix. Location: Alsdorf, Aachen, North Rhine-Westphalia, Germany. Scale: Picture size 5 mm. © Thomas Witzke / Abraxas-Verlag
Roubaultite: Cu2(UO2)3(CO3)2O2(OH)2·4(H2O)
Comments: Lime green, granular roubaultite associated with pale yellow acicular uranophane. Location: KOV mine, Kamoto, Shaba, Democratic Republic of Congo. Scale: See Image. © Rruff Database
Roweite: Ca2Mn++2B4O7(OH)6
Comments: Pinkish nodular massive roweite. Location: Solongo, Republic of Buryatia, Siberia, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Roxbyite: Cu1.78S
Comments: Bronzy, metallic, massive roxbyite associated with hematite, co-type sample. Location: Olympic Dam mine, Roxby Downs, South Australia, Australia. Scale: See Image. © Rruff Database