Mineral Specimen Images (A)

Arsenogorceixite: BaAl3AsO3(OH)(AsO4,PO4)(OH,F)6

Comments: Lime colored crystalline arsenogorceixite on dark green olivenite.
Location: Bali Lo, Ashburton Downs, Western Australia, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Arsenogorceixite: BaAl3AsO3(OH)(AsO4,PO4)(OH,F)6

Comments: White arsenogorceixite spherules to less than 0.25mm in vuggy matrix.
Location: Clara mine, Schwarzwald, Germany. Scale: Picture size 0.5 cm.
© Tom Loomis / Dakota Matrix

Arsenogoyazite: (Sr,Ca,Ba)Al3(AsO4,PO4)2(OH,F)5·(H2O)  
Olivenite: Cu2AsO4(OH)

Comments: White micro-botryoids of arsenogoyazite with light green acicular crystal sprays of olivenite and dark green malachite on brown limonite.
Location: Centennial Eureka Mine, Juab County, Utah. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Arsenogoyazite: (Sr,Ca,Ba)Al3(AsO4,PO4)2(OH,F)5·(H2O)

Comments: Clear, white micro (<0.25mm) rhombohedral arsenogoyazite crystals.
Location: Clara mine, Schwarzwald, Germany. Scale: Picture size 0.5 cm.
© Tom Loomis / Dakota Matrix

Arsenohauchecornite: Ni18Bi3AsS16

Comments: Bright bronze, massive arsenohauchecornite with chonchoidal fracture.
Location: Vermilion Mine, Denison Township, Sudbury District, Ontario, Canada. Scale: See Image.
© Rruff Database

Arsenolamprite: As

Comments: Needle like gray crystals of arsenolamprite in calcite matrix.
Location: Mackenheim,, Odenwald, Germany. Scale: Crystal size 1 mm.
© Tom Loomis / Dakota Matrix

Arsenolamprite: As

Comments: REM (Raster Electron Microscope) image of well cristallized arsenolamprite fragments.
Location: Mine dump near shaft 371, Hartenstein, Germany. Scale: See Image.
© Thomas Schlothauer

Arsenolamprite: As

Comments: Vein of arsenolamprite in matrix.
Location: Mine dump near shaft 371, Hartenstein, Germany. Scale: See Image.
© Thomas Schlothauer

Arsenolite: As2O3

Comments: Brownish yellow octahedrons of arsenolite on matrix.
Location: White Caps mine, Manhattan, Nye County, Nevada, USA. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Arsenopalladinite: Pd8(As,Sb)3  
Isomertieite: Pd11Sb2As2  
Gold: Au  
Bornite: Cu5FeS4

Comments: Light grayish grain of intimately intergrown isomertieite and arsenopalladinite (in the center of the picture), with pale yellow gold and brownish to violet bornite. Polished section (from microprobe analysis) in reflected light.
Location: Noril'sk, Putoran Mts, Taymyrskiy Autonomous Okrug, Eastern-Siberian Region, Russia. Scale: Picture size 0.1 mm.
© Thomas Witzke / Abraxas-Verlag

Arsenopalladinite: Pd8(As,Sb)3

Comments: Arsenopalladinite micro crystal.
Location: Itabira, Minas Gerais, Brazil. Scale: Not Given.
© Jeff Weissman / Photographic Guide to Mineral Species

Arsenopyrite: FeAsS  
Siderite: Fe++CO3

Comments: White, metallic arsenopyrite and tan siderite crystals.
Location: Panasqueira (2000, 3rd level), in the region of Beira Baixa, Portugal. Scale: 11 x 7 cm.
© Fabre Minerals

Arsenopyrite: FeAsS

Comments: Polished section (PPL) showing crystalline aggregate of arsenopyrite (asp) in massive sphalerite (sp), typical of the main sphalerite lens.
Location: Giant Kidd Creek Volcanogenic Massive Sulfide deposit, Western Abitibi Subprovince, Timmins, Ontario, Canada. Scale: F.V. = 0.25 mm.
© National Resouces of Canada

Arsenosulvanite: Cu3(As,V)S4  
Colusite: Cu12-13V(As,Sb,Sn,Ge)3S16

Comments: Bronzy, metallic tetragonal crystals of colusite (arsenosulvanite) in white marble.
Location: Val Bona quarry, Carrara, Italy. Scale: Picture size 1 cm.
© Dave Barthelmy

Arsenpolybasite: [Ag9CuS4] [(Ag,Cu)6(As,Sb)2S7]

Comments: Back, crystalline arsenpolybasite in quartz.
Location: Medenec, Severocesky, Moravia, Czech Republic. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Arsentsumebite: Pb2Cu(AsO4)(SO4)(OH)

Comments: Crystallized arsentsumebite in a vuggy rock matrix.
Location: Tsumeb Mine, Tsumeb, Namibia. Scale: Crystals to 0.25mm.
© John Veevaert

Arsenuranospathite: HAl(UO2)4(AsO4)4·40(H2O)

Comments: Yellowgreen to brown arsenuranospathite crust on matrix.
Location: Elias Mine, Jachymov, Bohemia, Czech Republic. Scale: Specimen Size 2.1x2.7 cm.
© Diederik Visser

Arsenuranylite: Ca(UO2)4(AsO4)2(OH)4·6(H2O)

Comments: Yellow crystalline arsenuranylite.
Location: Rudnoje, Bukhara District, Uzbekistan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Arthurite: CuFe+++2(AsO4,PO4,SO4)2(O,OH)2·4(H2O)  
Pharmacosiderite: KFe+++4(AsO4)3(OH)4·6-7(H2O)

Comments: Altered rhyolite vug lined with brilliant apple green arthurite and cubic green crystals of pharmacosiderite.
Location: Majuba Hill Mine, Pershing County, Nevada. USA. Scale: 2.7 x 1.7 cm.
© John Veevaert

Arthurite: CuFe+++2(AsO4,PO4,SO4)2(O,OH)2·4(H2O)

Comments: Radiating sprays of acicular arthurite.
Location: Majuba Hill mine, Pershing County, Nevada, USA. Scale: Spray size 2.5 mm.
© Tom Loomis / Dakota Matrix