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sulfur gemstone in front of black
Mineral Fusinus sp. Pliozän
Sulfur mineral specimen
Fragment of uranium or yellow cake
Agate stone with quartz geode. Multicolored silica bands colored with metal oxides are visible. Macro photography of the surface of the cut. Origin: Atlas mountains, Morocco.
A copper mine ore nugget.
Beautiful collection of precious minerals in natural form - crystal agates, polymetallic, jaspers, geode and others.
Silica Quartz mineralisation around purple fluorite cubic crystals in a mineral rock sample
Close-up of naturally occurring rare crystalline ore
Topaz crystal isolated on the white background.
Big natural stone green amber on white background
Pegmatite rock close up with many crystals.
Sulfur crystals mineral specimen
A large hole in the ground reveals the view of earth with different chemical porperties at the Whakarewarewa park witch is a geothermal area within Rotorua city in the Taupo Volcanic Zone of New Zealand.
Fuchsit cut out on a white background
Pieces of gold in the rock
Macro mineral beryl heliodor stone on black background close up
Crystal raw ore
Tasty nori seaweed as a background. Top view.
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.
Sulfur crystals mineral specimen
Hand-drawn rocks (Petroglyphs) in Cholpon-Ata city, Kyrgyzstan.\nNorth of the centre is an extensive field of glacial boulders, many with pictures scratched or picked into their surfaces. Some of these petroglyphs date from the Bronze Age (about 1500 BC), but most are Saka-Usun (8th century BC to 1st century AD), Most are of long-horned ibex.
Clear quartz on vibrant orange and white banded carnelian agate chalcedony tumbled crystal macro isolated on a black leather background
A gold nugget is a naturally occurring piece of native gold. The image shows a large nugget with blue background.
The stalactites are in wooden trays in an exhibition hall
Magnified close up of porphyritic granite with fledspar.
sulphur mineral isolated
sunstone mineral stone sample macro photography
Macro of mineral stone Anglesite in Galena on white background close up
Smoky quartz
Free Images: "bestof:Sassolite.jpg Yellow sassolite from Vulcano island Italy Photograph taken at the Natural History Museum London own 2005-02-18 Aram Dulyan User Aramgutang"
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