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Belmont-l'Estaing, Saint-Privat-du-Dragon, Lavoûte-Chilhac, Haute-Loire, Auvergne, France
Calcite
Belmont-l'Estaing, Saint-Privat-du-Dragon, Lavoûte-Chilhac, Haute-Loire, Auvergne, France
Belmont-l'Estaing, Saint-Privat-du-Dragon, Lavoûte-Chilhac, Haute-Loire, Auvergne, France
- Very old exploitations about 500 meters north-east from Belmont : granitic pegmatites with white quartz and cassiterite vein. Old gold workings. (J. Dorlhac, Revue de l'Industrie Minérale, 1862, T VIII, L3).
Two type of mineralizations can still be seen :
- Microcrystalline/heterogranular/mosaic red quartz (with hematite) brecciating host rocks.
This type of quartz contains numerous "ghosts" of plagioclase laths. This formation is very probably the result of the silification of a dolerite vein.
Galena, sphalerite and sulphosalts are associated with this type of quartz.
- "Hot" (pegmatitic) quartz associated with pyrrhotite, arsenopyrite and schorl.
Host rocks : anatexites and granites.
Mineral List
20 entries listed. 18 valid minerals.
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Locality Updated: San Miguel Mine, Moctezuma, Mun. de Moctezuma, Sonora, MexicoFrom David Von Bargen, 24th May 2013 23:52:46
















