Bariopharmacosiderite Ba0.5Fe3+4(AsO4)3(OH)4·5H2OLocality:Clara Mine, Oberwolfa
Bariopharmacosiderite Ba0.5Fe3+4(AsO4)3(OH)4·5H2OLocality:Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, GermanyField of view: 2.09 mmCollection: Heinz FörchPhoto: Michael FörchBariopharmacosiderite is a rather rarely occurring mineral from the mineral class of the “ phosphates , arsenates and vanadates ”. A secondary mineral coating fractures and cavities in tetrahedrite-tennantite bearingrocks undergoing near-surface weathering. Easily soluble in warm hydrochloric acid. -- source link
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