Click on thumbnails for a larger image. Please be patient since some of these pages of thumbnail images take some time to load. These mineral photos are copyrighted by their owners and may not be used without permission.
Andreyivanovite: FeCrP
Comments: BSE image of serpentine (gray) grain containing curvilinear arrays of andreyivanovite crystals (A) and associated florenskyite (F) lath. AmMin v93, p1296. Location: Kaidun meteorite (South Yemen). Scale: Scale Bar 20 µm. © American Mineralogist
Anduoite: (Ru,Os)As2
Comments: Backscattered electron Image of euhedral anduoite crystal enclosed in chromian spinel containing lamellae of ilmenite. Image on left is large view, image on right is detailed view. (CanMin, v 39, p 596). Location: Chromitite ore, Kapitanov deposit, Ukrainian Shield, Ukraine. Scale: See Image. © Canadian Mineralogist
Andyrobertsite: KCdCu5(AsO4)4[As(OH)2O2]·2(H2O)
Comments: Blue andyrobertsite with blue calcioandyrobertsite on green olivenite. Holotype specimen Min Record cover. Location: Tsumeb Mine, Tsumeb, Namibia.. Scale: Specimen 4.1 cm. © William Pinch
Angastonite: CaMgAl2(PO4)2(OH)4?7H2O
Comments: White acicular to short prismatic crystals of angastonite covering a dark matrix. Location: Penrice quarry, Angaston, South Australia, Australia. Scale: Overall: 5.5 x 3.5 x 2 cm. © Tom Loomis / Dakota Matrix
Comments: SEM image of platy, striated crystals of angastonite. Location: Angaston, South Australia. Scale: Unknown. © Mineralogical Magazine
Angelaite: Cu2AgPbBiS4 Miharaite: Cu4FePbBiS6
Comments: Image of a polished section of the ore (without analyzer): galena (ga) with numerous inclusions miharaíte (wi) and angelaíte (an). Pyrite (pi), chalcopyrite (cp). (AsocGeolArgent, v59, no 4). Location: Angela mine, IS-type mineralization in the district springs, Chubut, Argentina. Scale: See Image. © Revista de la Asociación Geológica Argentina
Angelellite: Fe+++4(AsO4)2O3
Comments: Back microcrystalline angelellite on matrix. Location: Cerro Pululus Tin Mine, Jujuy, Argentina. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Anglesite: PbSO4
Comments: Crystalline anglesite with minor duftite. The crystal at the top of the specimen is partially doubly terminated. Location: Tsumeb Mine, Tsumeb, Namibia. Scale: 2.7 x 2.1 cm. © John Veevaert
Comments: White anglesite crystals with dark gray posnjackite. Location: (1st Oxidation Zone), Tsumeb, Namibia. Scale: 8.5 x 5 x 4 cm. © John Schneider
Anhydrite: CaSO4
Comments: Several terminated groups of light blue anhydrite crystals in parallel growth. Location: Naica. Chihuahua, Mexico. Scale: 9.5 x 8 x 6 cm. © Isaias Casanova / IC Minerals