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Berkeley Pit Mine in Butte, Montana, USA.
abstract form and texture on grunge floor
Naturally formed metal shale mine closeup
Serpentinite or serpentine is a rock composed of one or more of the serpentine group of common rock-forming hydrous magnesium iron phyllosilicate minerals; they may contain minor amounts of  chromium, manganese, cobalt and nickel. Minerals in this group, which are rich in magnesium and water, light to dark green, greasy looking and slippery feeling, are formed by serpentinization. Modini Mayacamas Preserve.
Survey marker at the top of Observation Point in Zion National Park in Utah, USA.
Petrified stumps and mesa in one of the world's largest and most colorful concentrations of petrified wood, multi-hued badlands Petrified Forest National Park, Arizona, USA. vertical
Stock photo showing close-up view of weathered, copper sheet surface, turquoise blue metal background.
Potassium permanganate crystals under a microscope. Abstract science  or chemistry background
Petrified wood logs and chunks of various sizes, shapes and colors laying around located inside Petrified Forest NP.  Ancient civilization structure built with petrified wood in the park against a blue cloud sky.
Mineral Fusinus sp. Pliozän
Polished glowing surface of meteorite, composed by high density heavy metals, mostly iron and nickel with traces of cobalt. Close up. Hoba, Namibia, Africa.
Natural ecology, stone, rust, texture, background, abstract, plain stone, rock, building material, shape, solid, marble, granite, sea stone, wall, floor, stone wall, color, nature, simplicity
Bismuth is a golden-black mineral. Close-up, background and texture of the mineral.
Unique underground geology of  stalactites and stalagmites.
tile, striped pattern of decorative stone
Green quartz crystal isolated on the white background.
chrysoprase mineral texture as very nice natural background
Smoky quartz
Texture of concrete wall for background.
Agate is a microcrystalline variety of quartz, chiefly chalcedony, cryptocrystalline form of silica.  Although agates may be found in various kinds of rock, they are classically associated with volcanic rocks but can be common in certain metamorphic rocks. Most agates occur as nodules in volcanic rocks or ancient lavas where they represent cavities originally produced by the disengagement of volatiles in the molten mass which were then filled, wholly  by siliceous matter deposited in regular layers upon the walls. Cathedral Valley, Capitol Reef National Park, Utah.
The heterogeneous background of dark stone
Petrified forest National Park
Leaf Fossil
Large piec of petrified wood in the Escalante Petrified Forest State Park.
Petrified tree trunk, Long Los, Petrified Forest National Park, Arizona - United States
Rustic stones, corroded textures, colorful and interesting backgrounds and charming textures, used for web design and abstract backgrounds
Natural texture of natural stone cross section
Magnified close up of meta conglomerate rock with a variety of inclusions.
Copper ore in a boulder at Timna Park near Eilat in southern Israel
Crater Lake Nat. Park is located in Southern Oregon and was established in 1902. The Crater lake is 594 meters deep and the deepest in the United States.
Free Images: "bestof:Polishedironmeteorite.jpg en Surface of polished iron meteorite Photographed at the San Diego Natural History Museum California USA own Stickpen 2010-06-08"
Young female mummy from near Lupo, Peruvian Andes, about 550 years old - San Diego Museum of Man - DSC06926.JPG
Calochortussplendens2.jpg
Spinuspsaltria.jpg
Unidentified glass fruit - De Young Museum - DSC00305.JPG
Gypsum 'desert roses', Chihuahua, Mexico - Natural History Museum of Utah - DSC07463.JPG
Earrings, Maasai peoples, Kenya or Tanzania, 20th century, hide, metal, glass, plastic - Fernbank Museum of Natural History - DSC00039.JPG
Calebasse de chasseur R.D.Congo 1.jpg
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Natural History Museum HDR.jpg
Mission Beach-San Diego-California.jpg
Calochortussplendens3.jpg
Beach with cliffs.jpg
Courthouse street city buildings.jpg
Sorrento court.jpg
Calochortusweedii.jpg
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Calochortussplendens.jpg
Beaches point loma sunsets.jpg
Cool street in hillcrest.jpg
Calochortussplendensbud.jpg
Mission Beach regulations.jpg
San Francisco Conservatory of Music - DSC01305.JPG
San Francisco Conservatory of Music - DSC01303.JPG
San Francisco Conservatory of Music - DSC01302.JPG
San Francisco Conservatory of Music - DSC01300.JPG
San Francisco Conservatory of Music - DSC02724.JPG
Gorilla gorilla - San Francisco Zoo - San Francisco, CA - DSC03909.jpg
View-of-Stow-lake-at-San-Francisco-Golden-Gate-Park.jpg
View-of-Stow-lake-at-San-Francisco-Golden-Gate-Park.jpg
Peach-close-up.jpg
bathroom-in-style-classical.jpg
Hyotherium major skull MNHN.jpg
Mola mola stuffed museum La Rochelle.jpg
Hipparion gracile MNHN1.jpg
Birds and varmints - Museum of Wildlife and Fish Biology - University of California, Davis - DSC03327.JPG
Reliefs - Spreckels Temple of Music - San Francisco, CA - DSC05238.JPG
Fronton galerie mineralogie museum paris.jpg
Ceinture amazonienne caribe.jpg
Cancer bellianus Johnston 1861 stuffed museum La Rochelle.jpg
Homotherium crenatidens fabrini MNHN.jpg
Mandrillus sphinx MNHN.jpg
Square piano, Chickering, c. 1830 - National Museum of American History - DSC00078.jpg
Defense_Department_Continues_Aid_on_California's_Fire_Front_DVIDS62640.jpg
Equus hemionus kulan MNHN.jpg
Edvard_Munch,_Dødskamp.JPG
Rhinocéros Jacquemart musée d'Orsay RF 3753.jpg
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Holy family Sassoferrato Condé Chantilly.jpg
Diceros bicornis MNHN.jpg
Twilight (Sunset) by Frederic E. Church, 1856, oil on canvas - Albany Institute of History and Art - DSC08132.JPG
Balboa parks towers fountains night.jpg
Jeune éléphant pris au piège Frémiet Musée d'Orsay RF3752.jpg
Enfants chèvre Sarazin Louvre R.F.1843 gris.jpg
Panorama_of_San_Francisco_by_Eadweard_Muybridge,_1878.jpg
Claude_Monet,_Le_Grand_Canal.jpg
Lady_Elizabeth_Hamilton_(1753–1797),_Countess_of_Derby.jpg
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Pieter_Brueghel_the_Elder_-_The_Dutch_Proverbs_-_Google_Art_Project.jpg
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California tower in San Diego.jpg
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Pittsburgh museum of natural history and art.jpg
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San Diego sunrise.jpg
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garlic-peppers-colorful-market-52937.jpg
san-diego-zoo-gorilla-enclosure-1630352.jpg
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Midway aircraft carrier at the San Diego maritime museum.jpg
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Coranado San Diego cabrillo.jpg
Looking taowards downtown San Diego.jpg
Moai statue at the la natural history museum.jpg
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san-fransisco-san-fransisco-usa-63694.jpg
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