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Rusakovite: (Fe+++,Al)5(VO4,PO4)2(OH)9·3(H2O)
Comments: Orange-brown rusakovite coatings on dark brown sandstone. Location: Long Park, Montrose County, Colorado, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Russellite: Bi2WO6
Comments: Pale yellowish beige veinlet and thin crusts of russellite. Location: Himmelfahrt Mine, Steinbach, Johanngeorgenstadt, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm. © Thomas Witzke / Abraxas-Verlag
Rustenburgite: (Pt,Pd)3Sn Tatyanaite: (Pt,Pd,Cu)9Cu3Sn4
Comments: Back-scattered electron images showing inclusions of rustenburgite intergrown with taimyrite-tatyanaite aggregates. (AmMin, v 42, p 608). Location: Kondyor PGE placer, Khabarovskiy Kray, eastern Siberia, Russia. Scale: See Image. © American Mineralogist
Rustumite: Ca10(Si2O7)2(SiO4)Cl2(OH)2 Dellaite: Ca6Si3O11(OH)2
Comments: White grains of dellaite, intermixed with rustumite. Location: Queretaro, Zacatecas, Mexico. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Ruthenarsenite: (Ru,Ni)As Irarsite: (Ir,Ru,Rh,Pt)AsS
Comments: Photomicrograph of the largest inclusion of ruthenarsenite (Ru) associated with irarsite inclusions (Ir) in a rutheniridosmine matrix. (CanMin, v12:280). Location: Papua New Guinea. Scale: See Image. © Canadian Mineralogist
Rutheniridosmine: (Ir,Os,Ru)
Comments: Grain of rutheniridosmine. Location: Nevjansk, Ural Mts., Russia. Scale: Grain size 2.5 mm. © John Veevaert
Ruthenium: (Ru,Ir,Os) Isoferroplatinum: (Pt,Pd)3(Fe,Cu)
Comments: Scanning electron micrograph of polished section of ruthenium nugget with isoferroplatinum inclusions. Location: Miass River, Chelyabinsk District, Southern Urals, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Ruthenium: (Ru,Ir,Os) Palladodymite: (Pd,Rh)2As Hongshiite: PtCu
Comments: Palladodymite (light gray, in two small grains), hongshiite (pale creamy grayish, tarnished brownish) in massive ruthenium. Polished section (from microprobe analysis) in reflected light. Location: Miass River, Zlatoust, Ilmen Mts, Chelyabinsk Oblast', Urals Region, Russia. Scale: Picture size 0.09 mm. © Thomas Witzke / Abraxas-Verlag
Rutherfordine: UO2(CO3) Wyartite: Ca3U++++(UO2)6(CO3)2(OH)18·3-5(H2O)
Comments: Brown, acicular wyartite crystals next to bright yellow rutherfordine tufts. Location: Shinokolbwe mine, Tantara, Shaba, Democratic Republic of the Congo. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Rutherfordine: UO2(CO3)
Comments: Yellow, bladed crystals of rutherfordine. Location: Shinkolobwe Mine, Tantara, Shaba, Democratic Republic of the Congo. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals