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Magnified close up of porphyritic granite with fledspar.
Petrified wood, 20 million years old wood. Wood turned into stone
Fragment of uranium or yellow cake
Survey marker at the top of Observation Point in Zion National Park in Utah, USA.
A copper mine ore nugget.
A sedimentary rock on the dirt road in the countryside
The Verrucan Stone is a sediment conglomerate from the permian period. It consists of silicoplastics and vulcanic source. The Verrucano stones from switzerland (canton glarus and graubuenden) appear often in green ord red colurs. The close-up image was captured in the canton of glarus.
Petrified wood from the Baltic region is not only aesthetically pleasing but also scientifically significant
Pegmatite rock close up with many crystals.
Big natural stone green amber on white background
Scenery at Theodore Roosevelt National Park, North Dakota, USA
Native gold mineral on a white background
Marble quarries in Custonaci Trapany Sicily Italy Aerial view Today, more than 200 quarries, 54 of which in activity, are recorded in a small area 3 km2 between Monte Cofano and Monte Sparagiaio.
Bismuth is a golden-black mineral. Close-up, background and texture of the mineral.
Gneiss metamorphic rock. Beautiful layers
Druza of large crystals of galena, with crystals of calcite and siderite
Mountain range in the remote desert of western Utah.
Isolated sample of a Quartzite rock on texture background. Quartzite Metamorphic Rock sample. Quartzite stone isolated.
Large piec of petrified wood in the Escalante Petrified Forest State Park.
A chert conglomerate from the Fig Tree Formation of the Barberton greenstone belt
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anatase from Pakistan isolated on white background
Piece of natural mineral gemstones in gift store
Aerial top view for breathtaking white cliff near green valley on beautiful, cloudy sky background. White, high rock cliff near the field with green grass.
Deep sandstone canyon of red, gold and white rocks near Garden of the Gods and the Pikes Peak forest in Colorado Springs of western USA in North America.
Patterns on a quartz rock in the gold country of California
A limestone rock with seashell fossils from Croatian island Krk
Landscape shot of Pedernales Falls State Park
Free Images: "bestof:Star Pointer Geology.PNG en Star Pointer Geology 1990-01-01 USGS Bulletin 1857-E Gold in Porphyry Copper Systems Gold in the Ely Robinson Copper District White"
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