![]() |
Circle Genealogic and Historic Champanellois Association "Law 1901" of Saint-Genès-Champanelle, 63 , France |
Quarry of pouzzolane at the bottom of Puy de la vache
![]() |
By place, according to rate's of oxidation reached, pozzolana takes a blach colour. |
* [ previous page ] *
* [ back to the patrimony page ] *
* [ back to the welcome page ] *