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Arseniosiderite: Ca2Fe+++3(AsO4)3O2·3(H2O)
Comments: Yellowish brown, roughly spherical aggregates of arseniosiderite crystals on matrix. Location: Tsumeb mine, Tsumeb, Namibia. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Arseniosiderite: Ca2Fe+++3(AsO4)3O2·3(H2O) Cobaltarthurite: CoFe+++2(AsO4)2(OH)2·4(H2O)
Comments: Olive-greenish crystalline druse of cobaltarthurite with spherical arseniosiderite. Location: Pastrana, Mazarrón, Murcia, Spain. Scale: Picture size 1.3 mm. © Thomas Witzke / Abraxas-Verlag
Arsenocrandallite: (Ca,Sr)Al3[(As,P)O4]2(OH)5·(H2O)
Comments: Micro, pale blue botryoids of arsenocrandallite on dark green olivenite and quartz. Location: Centennial Eureka Mine, Juab County, Utah. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Arsenoflorencite-(Ce): (Ce,La)Al3(AsO4)2(OH)6
Comments: SEM image of euhedral crystal of arsenoflorencite-(Ce). (MinMag, v51:605). Location: Stream-sediment sample taken on the Kimba 1:250000 mapsheet on the Eyre Peninsula in South Australia. Scale: See Image. © Mineralogical Magazine
Arsenoflorencite-(La): (La,Sr)Al3(AsO4,SO4,PO4)2(OH)6
Comments: BSE image of four grains of orange-red Arsenoflorencite-(La) from heavy concentrates of gold-bearing sedimentary rocks. Location: Grubependity Lake, Maldinskii Region, Prepolar Ural, Russia. Scale: See Image. © Diederik Visser
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
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
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
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
Arsenohauchecornite: Ni18Bi3AsS16
Comments: Bright bronze, massive arsenohauchecornite with chonchoidal fracture. Location: Vermilion Mine, Denison Township, Sudbury District, Ontario, Canada. Scale: See Image. © Rruff Database