(Caspari-Zeche, Uentrop, Arnsberg, Sauerland, Nordrhein-Westfalen, Deutschland)
Ancient antimony mine, worked from 1825 to 1885. The deposit was worked earlier in search of lead ores, in 1725 and around 1787, but soon abandoned at these times. Today, the underground workings are completely inaccessible, but some dumps, consisting to some part of ancient slags, still remain northeast of Uentrop, about 2.5 km NE of Arnsberg.
The minerals larsenite, leiteite and vivianite exclusively occur in slags. Anglesite and mimetite occur both in slags and as naturally formed secondary minerals.
References:
- Dana 7:I:421
- Lapis 14(6):11-32, 50
- D. Pawlowski: "Mineralfundstellen im Sauerland", Weise (Munich), 1991
- Wagner, T., and Cook, N.J. (2000): Late-Variscan antimony mineralisation in the Rheinisches Schiefergebirge, NW Germany: evidence for stibnite precipitation by drastic cooling of high-temperature fluid systems. Mineralium Deposita 35, 206-222.
- Bindi, L. & Menchetti, S. (2005): Garavellite, FeSbBiS4, from the Caspari mine, North Rhine-Westphalia, Germany: composition, physical properties and determination of the crystal structure. Mineralogy and Petrology, 85, 131-140.
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Map Reference: 51°24'25"N , 8°5'52"E
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Mineral List:46 entries listed. 45 valid minerals. 1 type locality (valid mineral).
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