Minerals And Geological SamplesPhotographs of unique minerals and geological samples, showcasing different rock types and mineral formations from various locations. Obsidian with Cristobalite Sphenoids Malheur County, Oregon, USA Date: 198 assets in this story1746-211181901525-257079714128-285147284413-1834156145-487716401788-566911788-207602656145-443102371525-242791524413-1830321848-49534551255-584921151788-207598936019-193949877008-697670481788-207611086145-442843946145-439731771848-662029224413-1834036145-439657191848-495972041788-568131788-566416188-624022281788-207612671788-566614413-1830476145-447154581788-207611891848-495346041788-207612531848-504232101746-196661001848-605817981788-207603452003-6027026145-487803136145-439657561788-207602101746-196658776188-555043277008-697627941746-289818054220-200635001788-566936019-193949641899-786271746-211319906145-487714924409-173337476145-447162574315-2014128R-136202936145-439654454332-24116145-439657417008-697627594220-210805871746-289982651848-495972597008-697628866188-554974331788-207602621788-389304128R-136202994409-1041576145-446425351746-196657746145-439652311788-567586145-447199231746-211132226145-452896741788-207599766145-439654641746-211314084413-1830761746-211181886145-445203316145-445907616114-509768054409-728981788-207597961525-243100361788-207605211899-286295921788-207605994409-501013104261-29691746-211314641848-547863151788-207610171788-207604516145-487714356188-554514881525-235363534409-28579062 PREVIOUS of 2 NEXT