Wikimedi'Òc

Boar's Tusk (Early Pleistocene wyomingite volcanic center in the Leucite Hills, Wyoming, USA) 26 (48941662203).jpg - Ser Amantio di Nicolao

Olivine orendite lamproite (Pleistocene, 1.30-1.37 Ma; Black Rock volcanic center, Leucite Hills, Wyoming, USA) 1 (48981283466).jpg - Ser Amantio di Nicolao

Olivine orendite lamproite (Pleistocene, 1.30-1.37 Ma; Black Rock volcanic center, Leucite Hills, Wyoming, USA) 2 (48980721748).jpg - Ser Amantio di Nicolao