Axinite With Epidote
Burki Mine, Kurram Agency, Federally Administered Tribal Areas, Pakistan
Rhodochrosite | #Geology #GeologyPage #Mineral
Locality: Wolf Mine, Herdorf, Siegerland, Rhineland-Palatinate, Germany
Size: 3.1 × 1.8 × 1.7 cm
Largest Crystal: 0.80cm
Photo Copyright © Norbert Stoetzel /e-rocks.com
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Bariopharmacosiderite, Fluorite
Ba0.5Fe3+4(AsO4)3(OH)4·5H2O,
CaF2
Locality:
Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany
Heteroepitactic intergrowth of yellow-brown bariopharmakosiderite crystals on transparent fluorite.
Collection: Heinz Förch
Photo: Michael Förch
Bariopharmacosiderite -rare mineral from the mineral class of “ phosphates , arsenates and vanadates”. Bariopharmacosiderite develops only small crystals up to about one millimeter in size with pseudocubic habitfrom yellow to brownish-yellow, orange to red or rarely even green to bluish in color. It is a secondary mineral coating fractures and cavities in tetrahedrite-tennantite bearing
rocks undergoing near-surface weathering. Even as a rather rare mineral it may be abundant in various localities, but overall it is not widely used.
