Mineral Specimen Images (R)

Ruizite: CaMn+++Si2O6(OH)·2(H2O)  
Inesite: Ca2Mn7Si10O28(OH)2·5(H2O)

Comments: 1- 3 mm crystal spray of red orange ruizite in an exposed vug in pink inesite.
Location: Wessels Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: Picture size 1 cm.
© John Veevaert

Ruizite: CaMn+++Si2O6(OH)·2(H2O)

Comments: Deep reddish brown crystals of ruizite as radial, acicular sprays to 0.1mm.
Location: Christmas mine, Gila Co., Arizona, USA. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

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)  
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

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

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

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

Rutile: TiO2  
Pyrophyllite: Al2Si4O10(OH)2

Comments: Rutile on fine-grained pyrophyllite.
Location: Graves Mt. Georgia, USA. Scale: 4.5 x 5 cm.
© Fabre Minerals

Rutile: TiO2  
Hematite: Fe2O3

Comments: Acicular, golden yellow crystals of rutile epitaxially overgrown on black crystals of hematite. The overgrowths are perpendicular to the trigonal crystallography of the hematite.
Location: Novo Horizonte, Bahia Brazil. Scale: 4 x 3.5 x 3 cm.
© Fabre Minerals

Rynersonite: Ca(Ta,Nb)2O6

Comments: Off-white fibrous rynersonite.
Location: Brown Derby No. 1 Mine, Gunnison County, Colorado, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Rynersonite: Ca(Ta,Nb)2O6  
Schiavinatoite: (Nb,Ta)BO4

Comments: Brown, columnar schiavinatoite with minor white rynersonite sticks on quartz.
Location: Ampanodiana Sud, Tetezantsio, Mahaiza, Antananarivo, Madagascar. Scale: See Image.
© Jeff Weissman / Photographic Guide to Mineral Species