Rruff Database's Image Gallery

Petedunnite: Ca(Zn,Mn++,Fe++,Mg)Si2O6

Comments: Dark green, fine-grained, massive petedunnite.
Location: Franklin, New Jersey, USA. Scale: See Image.
© Rruff Database

Piemontite-(Sr): (Ca,Mn++)(Sr,Ca)Mn+++(Al,Mn+++,Fe+++)2(SiO4)(Si2O7)O(OH)

Comments: Carmine red crystals of piemontite-(Sr) found on quartz.
Location: Graveglia, Piemont, Italy. Scale: See Image.
© Rruff Database

Plumbonacrite: Pb10(CO3)6O(OH)6

Comments: Transparent crystals of plumbonacrite.
Location: Wanlockhead, Scotland. Scale: See Image.
© Rruff Database

Poudretteite: KNa2B3Si12O30

Comments: Pale pink gem fragment of poudretteite.
Location: Pyant-gyi mine, near Pein-pyit, Mogok, Sagaing Region, Mandalay Division, Burma. Scale: See Image.
© Rruff Database

Protoferro-anthophyllite: (Fe++,Mn++)2(Fe++,Mg)5(Si4O11)2(OH)2

Comments: Sprays of brown-green prismatic protoferro-anthophyllite crystals.
Location: Nyppio mine, near Utsonomiya, Japan. Scale: See Image.
© Rruff Database

Pumpellyite-(Al): Ca2(Al,Fe++,Mg)Al2(SiO4)(Si2O7)(OH,O)2·H2O

Comments: Pale green radiating fibrous to bladed pumpellyite-(Al) crystals on matrix.
Location: La Fleche Quarry, Bertrix, Luxembourg Province, Belgium. Scale: See Image.
© Rruff Database

Pyrophanite: MnTiO3

Comments: Red-brown platy pyrophanite crystals with deep red internal hints, associated with barite.
Location: Harstigen Mine, Pajsberg, Filipstad, Värmland, Sweden. Scale: See Image.
© Rruff Database

Rhodarsenide: (Rh,Pd)2As

Comments: BSE image of dark gray metallic inclusion of rhodarsenide in sperrylite and Os,Ir,Ru matrix. Inset images show detail BSE and epoxy grain mount.
Location: Miass River, Urals, Russia. Scale: See Image.
© Rruff Database

Richetite: PbU++++++4O13·4(H2O)

Comments: Brown plates of richetite.
Location: Shinkolobwe mine, Katanga, Congo. Scale: See Image.
© Rruff Database

Rickardite: Cu7Te5  
Cameronite: AgCu7Te10  
Vulcanite: CuTe

Comments: Gray metallic massive cameronite showing subconchoidal fracture associated with purple rickardite and bronzy plates of vulcanite in a mass of tellurium, co-type specimen.
Location: Good Hope mine, Vulcan District, Gunnison County, Colorado, USA. Scale: See Image.
© Rruff Database

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

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

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

Sadanagaite: (K,Na)Ca2(Fe++,Mg,Al,Ti)5[(Si,Al)8O22](OH)2

Comments: Heavy mineral concentrate of black to dark brown grains showing strong pleochroism.
Location: Ilmen Mts, Chelyabinsk Oblast', Urals Region, Russia. Scale: See Image.
© Rruff Database

Sakhaite: Ca3Mg(BO3)2(CO3)·0.36(H2O)

Comments: Dark gray octahedron of sakhaite embedded in gray calcite.
Location: Titovskoe, Sakha (Yakutia) Republic, Russia. Scale: See Image.
© Rruff Database

Sarcolite: NaCa6Al4Si6O24F (?)

Comments: Rounded colorless sarcolite crystals associated with orange gehlenite and black augite.
Location: Monte Somma, Vesuvius, Italy. Scale: See Image.
© Rruff Database

Scotlandite: PbSO3

Comments: Radiating group of colorless spear-head shaped prismatic crystals of scotlandite.
Location: Lady Anne Hopetoun shaft. Leadhills, Lanarkshire, Scotland. Scale: See Image.
© Rruff Database

Shandite: Pb2Ni3S2

Comments: Bright silver metallic shandite blebs in serpentinite, chonchoidal fracture.
Location: Nickel Reward mine, Tasmania, Australia. Scale: See Image.
© Rruff Database

Smithite: AgAsS2  
Chabourneite: (Tl,Pb)21(Sb,As)91S147

Comments: Black metallic chabourneite with conchoidal fracture, associated with yellow-red realgar and deep-red smithite.
Location: Jas Roux, Pelvoux Mt., Valgaudemar, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France. Scale: See Image.
© Rruff Database

Stannite: Cu2FeSnS4  
Volfsonite: Cu+10Cu++Fe++Fe+++2Sn++++3S16

Comments: Bluish-black octahedron of stannite (also known as volfsonite).
Location: Yaogangxian Wolfram mine, Yizhang County, Hunan Province, China. Scale: See Image.
© Rruff Database