(Mine de l'Argentolle, L'Argentolle, Saint-Prix, Beuvray, Saône-et-Loire, Bourgogne, France)
Four successive stages of mineralization :
1) Fvv (Voltennes) type : silicification followed by quartz and banded green/violet fluorite (Jurassic NW-SE distension)
2) Fvv terminal stage : Green fluorite and quartz, carbonates (calcite, ankerite, dolomite)
3) Hematoid (red) quartz (hematite)
BaFj (Rouergue) type : Yellow, amber and colorless fluorite with barite (Oligocene ENE-WSW distensions and mixture of marine water with hydrothermal fluid at basin margin)
4) Late quartz and sulfides replacing stage 3) BaFj
Manganese oxides (cf. La Boula and Rocher du Boeuf)
Ref.:
Rocks & Min. 61: 216.
