Chavanol Mine, Doizieux, Saint-Étienne, Loire, Auvergne-Rhône-Alpes, France
Small gypsum crystals growing (neoformation) on the walls of the adit. My fingers are for the scale.
© Matthias Diot
Some dumps of the Chavanol Mine (19th century workings). The big rock on the left is a part of a quartz vein parallel to the mineralized vein.
This is the entry of the adit dug in the 1930s. It is very close to the road as you can see!
The beginning of the adit with the last stock still in place.
This adit is easily (too much?) accessible and many graffitis were made on the walls during the 1990s... Nice, isn't it?
This is the vein at its best quality! To the left: quartz and blue fluorite / To the right: massive galena. FOV: ~ 30 cm.
This the end of the adit. At this place, the vein has a strange shape and is sterile which caused the stop of digging...
This is some copper oxides concretions on the adit wall... (Approx. 1 m tall)
This is the middle of the adit with the last railroad which still remain (others were stolen).