diffendale:
Sample of "tufo litoide" (Tufo Lionato, Monteverde facies) in Bologna
diffendale:
A second sample of "peperino" (Lapis Albanus, Peperino Albano, Peperino di Marino) in Bologna
diffendale:
Sample of "peperino" (Lapis Albanus, Peperino Albano, Peperino di Marino) in Bologna
diffendale:
Sample of tuff from Tivoli
diffendale:
Sample of leucitic tephrite from the Roccamonfina volcano
diffendale:
Sample of "travertino incrostante" (tartaro) from the area of Rome
diffendale:
Sample of "argilla pliocenica" (Pliocene clay) from Monteverde
diffendale:
Sample of peperino with augite inclusion
diffendale:
A second sample of peperino with augite inclusion
diffendale:
Sample of peperino with augite and biotite inclusions
diffendale:
A fifth metope representing two girls moving to the right, from the Heraion at Foce del Sele (Paestum), 6: detail of sandstone