Mineral Specimen Images (R)

Realgar: AsS  
Rebulite: Tl5Sb5As8S22

Comments: Dark gray rebulite grain in red, massive realgar.
Location: Allchar, Roszdan, FYR Macedonia. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Realgar: AsS  
Vrbaite: Tl4Hg3Sb2As8S20

Comments: Black grain of vrbaite in red realgar matrix.
Location: Allchar, Roszdan, FYR Macedonia. Scale: Picture size 1.7 mm.
© Thomas Witzke / Abraxas-Verlag

Rebulite: Tl5Sb5As8S22  
Realgar: AsS

Comments: Dark gray rebulite grain in red, massive realgar.
Location: Allchar, Roszdan, FYR Macedonia. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Rectorite: (Na,Ca)Al4(Si,Al)8O20(OH)4·2(H2O)

Comments: Blue Mountain District, Marble Township, Garland Co., Arkansas, USA.
Location: Five pieces of leather-like fragments of rectorite in twisted, irregular shapes. Scale: Specimen size 1-4 cm.
© John Betts - Fine Minerals

Reddingite: Mn++3(PO4)2·3(H2O)

Comments: Opaque brown crystalline reddingite.
Location: Tip Top Quarry, Custer County, South Dakota, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Reddingite: Mn++3(PO4)2·3(H2O)

Comments: Brown crystals of reddingite on matrix.
Location: Boa Vista creek, Minas Gerais, Brazil. Scale: Crystal size 1 mm.
© Sandro Maggia/Minernet.it

Reddingite: Mn++3(PO4)2·3(H2O)

Comments: Golden brown to brown, highly lustrous, pseudo-octahedral crystals of reddinite.
Location: Cigana mine, Galileia, Minas Gerais, Brazil. Scale: Crystal size 0.5 mm.
© Tom Loomis / Dakota Matrix

Redgillite: Cu6(OH)10(SO4)·H2O

Comments: Light green acicular microcrystals of redgillite with unidentified blue Cu sulphate on matrix.
Location: Grube Schone Aussicht, Siegerland, Germany. Scale: Picture size 2 mm.
© Diederik Visser

Redingtonite: (Fe++,Mg,Ni)(Cr,Al)2(SO4)4·22(H2O)  
Botryogen: MgFe+++(SO4)2(OH)·7(H2O)

Comments: Pale pink granular redingtonite on yellow-brown botryogen.
Location: Redington Mine, Knoxville, Napa County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Redledgeite: BaTi6Cr+++2O16·(H2O)

Comments: Red Ledge Mine, Washington, Washington District, Nevada Co., California, USA.
Location: Green, massive redledgeite. Scale: Picture size 4.5 mm.
© Thomas Witzke / Abraxas-Verlag

Reedmergnerite: NaBSi3O8

Comments: Peach colored crystalline reedmergnerite in quartz.
Location: Dara-Pioz, Tien-Shan, Tadzhikistan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Reevesite: Ni6Fe+++2(CO3)(OH)16·4(H2O)

Comments: Green reevesite coatings on serpentinite rock.
Location: Pacific Asbestos Corporation Mine, near Copperopolis, Tuolumne County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Reichenbachite: Cu++5(PO4)2(OH)4

Comments: Green crystals of reichenbachite on quartz.
Location: Bergen, near Falkenstein, Vogtland, Saxony, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Reidite: ZrSiO4

Comments: Scanning electron microscope photomicrograph of the surface of an etched shocked zircon with a skeletal crystalline phase that may be reidite. X-ray diffraction data indicate that this zircon contains minor amounts of reidite. (AmMin 87:563).
Location: Found in an upper Eocene impact ejecta layer in marine sediments on the upper continental slope off New Jersey and on Barbados. Scale: See Image.
© American Mineralogist

Reinerite: Zn3(As+++O3)2

Comments: Sky blue fiberous vein fillings of reinerite in matrix.
Location: Tsumeb, Namibia.. Scale: Specimen Size 3.8 cm Tall.
© William Pinch

Reinhardbraunsite: Ca5(SiO4)2(OH,F)2  
Brownmillerite: Ca2(Al,Fe+++)2O5

Comments: Pink crystalline reinhardbraunsite in brownmillerite.
Location: Near Bellerberg, Eifel, Rheinland-Pflaz, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Remondite-(Ce): Na3(Ce,La,Ca,Na,Sr)3(CO3)5

Comments: Flesh-colored, acicular crystals of remondite-(Ce) in matrix.
Location: Mt. St. Hilaire, Quebec, Canada. Scale: Box Base 3 x 3 cm.
© Sonke Stolze / Systematic Minerals

Renardite: Pb(UO2)4(PO4)2(OH)4·7(H2O)

Comments: Bright yellow, tabular crystals of renardite on matrix.
Location: Grury, Saone-et-Loire, France. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Renierite: (Cu,Zn)11(Ge,As)2Fe4S16

Comments: Dull dark orange tarnished renierite with brassy chalcopyrite.
Location: Prince Leopold Mine, Kipushi, Shaba, Zaire. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Reppiaite: Mn++5[(V,As)O4]2(OH)4

Comments: Vitreous orange crystals of reppiaite embedded in matrix.
Location: Gambatesa mine, Genova, Ligurai, Italy. Scale: Crystal size 0.5mm.
© Tom Loomis / Dakota Matrix