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Ancylite-(La): Sr(La,Ce)(CO3)2(OH)·(H2O)
Comments: Pale brown aggregates of ancylite-(La) crystals with some aegirine on matrix. Location: Mt. Kukisvumchorr, Chibiny, Kola, Russia. Scale: Specimen Size 2.5x3.5 cm. © Diederik Visser
Andalusite: Al2SiO5 = Al[6]Al[5]OSiO4
Comments: Wine colored andalusite associated with mica. Location: Sierra Albarrana, Cordoba, Spain. Scale: 4.5 x 3.5 cm. © Fabre Minerals
Andersonite: Na2Ca(UO2)(CO3)3·6(H2O)
Comments: Veins of bright yellowish green, andersonite in sandstone. The fluorescence of this mineral is noticeable under ambient office lighting plus a UV lamp. Location: Atomic King Mine, Cane Creek Canyon, Grand County, Utah, USA. Scale: Specimen size 6 cm. © Paul M. Schumacher
Comments: Yellow crusts of andersonite in sandstone. Location: Atomic King mine, San Juan County, Utah, USA. Scale: 4x3x2 cm. © John Veevaert
Andesine: (Na,Ca)(Si,Al)4O8 Plagioclase: (Na,Ca)(Si,Al)4O8
Comments: Translucent andesine crystal twin. Location: Maeyama Ueda shi, Nagano, Japan. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Andorite: PbAgSb3S6 Ferrokesterite: Cu2(Fe,Zn)SnS4
Comments: Small, tetragonal crystal of gray ferrokesterite (circled in thumbnail) attached on the surface of a larger striated andorite specimen. Location: San Jose mine, Oruro, Bolivia. Scale: Crystal size 0.2 mm. © John Veevaert
Andorite: PbAgSb3S6
Comments: Metallic, prismatic andorite crystal. Location: Baie Sprie (Felsobanya), Maramures, Romania. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Andradite: Ca3Fe+++2(SiO4)3 Glagolevite: NaMg6[Si3AlO10](OH,O)8·H2O
Comments: Pearly white plates of glagolevite with olive-colored andradite dodecohedrons. Location: Zheleznyi Mine (Iron Mine), Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture Size 12x10 mm. © Pavel M. Kartashov
Andradite: Ca3Fe+++2(SiO4)3
Comments: Andradite (var. Demantoid) Garnet. Location: Namgar mine, Erongo Mts. Namibia. Scale: 3.5 x 3.2 cm. © Fabre Minerals
Andradite: Ca3Fe+++2(SiO4)3 Clinochlore: (Mg,Fe++)5Al(Si3Al)O10(OH)8
Comments: Transparent topazolite, the yellow variety of andradite on clinochlore. Location: Yellow Cat Mine, New Idria District, San Benito County. California, USA. Scale: 2.7 x 2.5 cm. © Fabre Minerals