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Druza of large crystals of galena, with crystals of calcite and siderite
Mineral Fusinus sp. Pliozän
Macro cubical pyrite on white matrix isolated on gray background
Aerial view of a mining quarry with heavy machinery, surrounded by forest.
Atacamite calcination of chlorides
a rough unrefined gypsum sample with large crystals
Silica Quartz mineralisation around purple fluorite cubic crystals in a mineral rock sample
A chert conglomerate from the Fig Tree Formation of the Barberton greenstone belt
Topaz crystal isolated on the white background.
Bismuth is a golden-black mineral. Close-up, background and texture of the mineral.
Pegmatite rock close up with many crystals.
Muscovite gneiss with large flat single crystals, made of light mica, hand specimen from Germany, Bavaria, Upper Palatinate, stacked photo.
Barite on fluoride
Potassium permanganate crystals under a microscope. Abstract science  or chemistry background
Minerals in an igneous rock do not all form at the same time. In this porphyritic rock, the larger crystals are a feldspar that were already formed before the lava became solidified completely. The fine groundmass is composed predominantly of a mixture of very fine-grainedcrystals of quartz and feldspars.
Sample of biotite Schist, from the shear zone in the Beitbridge Complex in South Africa. Schist is metamorphic rock caused by pressure during medium grade metamorphism.
Wolframite is an iron manganese tungstate mineral. Along with scheelite, the wolframite series are the most important tungsten ore minerals.
Close-up of naturally occurring metallic mineral lead ore
Fragment of uranium or yellow cake
close up of native gold from Zlate Hory, Czech Republic
mica schist mineral sample under light microscopy
satterlyite mineral crystal sample related to shale mining
Chromite is the most important ore of chromium from which it derives its name. Chromium is an important metal and has a wide range of industrial uses. Common in meteorites. Chrome iron ore.
Feldspar is the most common mineral on earth. This sample was collected from the edge of the Archean aged Limpopo Mobile Belt.
Magnified close up of a pegmatite rock with many colors.
macro photography of natural mineral from geological collection - rough pyrophyllite stone on white background
Smoky quartz
Golden yellow calcite isolated on the white background
Aloe vera resin, dried juice
Free Images: "bestof:Chamosite in chert w pyrite Hydrous iron magnesium aluminum silicate Bonita San Diego County Calfornia 2495.jpg These mineral images are free to use how you"
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Convair b 36 magnesium cloud.jpg
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Train leaving the tunnel at via Lanzi.jpg
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