stone from bergamasque alps

alpine alps background bergamasque brick brickwork brown cleavage collio deposits diavolo epiclastites feldspar floor flooring fold formation formazione geologic geology hardwood isostatic italy layer lithography lombardy marble marks metamorphic metamorphics micascists mineralogy mountain natural orange orobie orogenic painting peak pelites permian petrographic pizzo pizzo_del_diavolo plywood porphyry quarry red ripple rock sedimentary soil stone strata stratification stratigraphy superiore surface terrigenous texture unconformities upper valcamisana violet volcanics volcanoclastic vulcanite