's Image Gallery

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

Rozenite: Fe++SO4·4(H2O)  
Ferrinatrite: Na3Fe+++(SO4)3·3(H2O)  
Copiapite: Fe++Fe+++4(SO4)6(OH)2·20(H2O)

Comments: White powdery rozenite coating with yellow ferrinatrite on purple copiapite.
Location: Le Cetine Mine, Siena, Tuscany, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ruarsite: RuAsS

Comments: BSE image showing LR: laurite, RURS: ruarsite, Ru-–ox: Ru oxide(?), Ru-Ni-As-S: unnamed Ru-Ni sulfarsenide. (CanMin, v31:331).
Location: Podiform chromitites of the Kraubath and Hochgrossen dunite-harzburgite massifs, Eastern Alps of Austria. Scale: Scale Bar 10 µm.
© Canadian Mineralogist

Rubicline: (Rb,K)AlSi3O8

Comments: Rubicline (white) including grains of quartz (black) in microcline (gray) associated with albite (black) and muscovite (mottled dark gray). BSE image (AmMin, 83:1336).
Location: Pollucite-bearing rare-element pegmatite at San Piero in Campo, Elba, Italy. Scale: Grain size 20 µm.
© American Mineralogist

Rucklidgeite: (Bi,Pb)3Te4  
Gold: Au

Comments: Polished section (PPL) image of sphalerite(sph)-chalcopyrite ore associated with hessite (he), rucklidgeite (rk), pyrite (py) and native gold (Au).
Location: Level 1070 m., Massive sulphide deposits of the Hanson-Flin Flon-Snow Lake, Manitoba, Saskatchewan, Canada. Scale: Picture Size 0,12 mm.
© National Resouces of Canada

Rucklidgeite: (Bi,Pb)3Te4

Comments: Tabular striated crystal of metallic-white rucklidgeite overgrown with a crystalline gold film. Associated minerals in the specimen are quartz, dolomite, fuchsite, chalcopirite, arsenopyrite and other Bi tellurides.
Location: Zod Mine (Sotk deposit), Vardenis, Gelark'unik' (Geghark'unik') Province, Armenia. Scale: Picture Size 3x2.5 mm.
© Pavel M. Kartashov

Rudashevskyite: (Fe,Zn)S

Comments: B&W reflected light image of rudashevskyite (Rud) attached to large schreibersite grain (Schr), associated with troilite (Tr), idiomorphic roedderite tablets (Roed), and clinoenstatite (Px) (AmMin, v93:903).
Location: Indarch meteorite, Shusha, Nagorno-Karabakh, Azerbaijan. Scale: See Image.
© American Mineralogist

Rudenkoite: Sr3Al3[(Si,Al)4O10](OH,O)8Cl2·H2O

Comments: White fragment of rudenkoite embedded in epoxy, co-type material.
Location: 80 km SEE of Aldan, Yakutia, Russia. Scale: See Image.
© Rruff Database

Ruifrancoite: Ca2([ ],Mn)2(Fe+++,Mn,Mg)4Be4(PO4)6(OH)4·6H2O

Comments: Botryoidal reddish brown aggregates of ruifrancoite associated with cyrilovite, and yellowish white spheres of meurigite on white mica. (CanMin, v45:1263).
Location: Sapucaia mine, Galiléia, Minas Gerais, Brazil. Scale: See Image.
© Canadian Mineralogist

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