Located 3 km north of Gignat and about 5 km SSW of Issoire, on top of La Chaux de Bergonne plateau.
Cavity fillings in an alkali basalt lava flow.
Sillimanite present as alluvial boulders unrelated to other minerals.
Mineral List:9 entries listed. 6 valid minerals. 1 type locality (valid mineral).
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!
