Arsenogorceixite

arsenogorceixite

arsenogoyazite

agardite

pharmacosiderite

Images

Formula: BaAl3(AsO4)(AsO3OH)(OH)6
Valence: BaAl3As5+O4(As5+O3OH)(OH)6
Arsenate, dussertite group, alunite supergroup, barium-bearing mineral, forms a series with arsenogoyazite
Crystal System: Trigonal
Specific gravity: 3.655 measured, 3.71 calculated
Hardness: 4
Streak: White
Colour: White, yellowish white, yellow, greenish yellow, greenish, pale blue, colourless
Luminescence: Not fluorescent under UV
Environments

Hydrothermal environments

Localities

At the type locality, the Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany, arsenogorceixite is a rare secondary mineral in the oxidised zone of a hydrothermal polymetallic barytefluorite deposit. Associated minerals include arsenogoyazite, brochantite, agardite, malachite, barium-bearing pharmacosiderite, olivenite, fluorite, baryte, limonite and quartz (HOM).
Arsenogorceixite from the Clara Mine - Image

At the Michael Mine, Weiler, Seelbach, Seelbach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany, arsenogorceixite is associated with mimetite, adamite, beudantite and tsumcorite (HOM).
Arsenogorceixite from the Michael Mine - Image

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