Pneumatolytic acid type Sn-W mineralizations related to Oulmès (Walmes) granite.
Host rocks: Cambro-Ordovician graphitic and graphitoid-rich metapelites, close to Hercynian Walmès granite.
A HT-LP contact metamorphism aureole rims the granite : internal andalusite zone (chloritoid-staurolite), brown biotite zone and green biotite external zone.
Pegmatitic/hydrothermal beryl-cassiterite veins and quartz veins are frequent in tourmalinized micaschists wallrocks.
Ref.:
D. Blamart et al. (1992): Eur. Journ. Mineral., 4, 355-368.
Mineral List
17 entries listed. 12 valid minerals.
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