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Horizontal full frame of Auriferous Pyrite (Fe S2) gray stone crystals background. The cluster is fully crystallized on all sides with no point of attachment.
Ryongmun limestone cave in Myoyhang Mountains, North-Korea.
calcium carbonate lumens, used in the treatment of hyperphosphatemia in patients with renal failure or associated with hyperparathyroidism and in hypocalcemic states
Hematite crystal background.
Optical birefringence demonstrated using a text using a natural double spar / calcite crystal, macro shot and with real shadows
Micro world
crystalline silver nugget from Reno, Nevada isolated on white background
Magnesium Lithium Aluminum Battery Element Mineral Metal Alloy
Beautiful unusual gray-black crystal stone cassiterite with a metallic sheen standing in the glass stand. Close up for shining crystal standing on the table.
Raw galena ore, aka lead sulfide, with blue-grey color on dark background
Calcium Chloride flakes, salt in solid state, used in brine for refrigeration machines, road dust and ice control, in cheese and in cement. Industrial use, isolated black background, copyspace
Boron Mineral
crystals background (natural lead texture from nature)
chinese medicine Han Shui Shi Natural Chinese Herb Medicine Gypsum Rubrumon black background
Natural Magnesite Mineral crystals - Magnesium Cluster
Vanadium periodic table element, mining, science, nature, innovation
Beautiful unusual gray-black crystal stone cassiterite with a metallic sheen standing in the glass stand. Close up for shining crystal standing on the table.
Sea salt grain on a dark background
Synthetic zeolite, or zeolite, mineral that improves the beneficial pH level, strengthens the immune system. Natural detoxifier, used during pregnancy, pharmaceutical product
calcite clear crystal cluster, macro detail texture background. close-up raw rough unpolished semi-precious gemstone
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native silver from Kongsberg, Norway isolated on white background
Three different types of rocks in sunlight, forming shadows. Kaolinite, Montmorillonite, clay minerals
glass vial with white powder
A kidney stone on a white background. Photographed alongside a US dime coin for a size reference.
Beautiful unusual gray-black crystal stone cassiterite with a metallic sheen standing in the glass stand. Close up for shining crystal standing on the table.
Orthoclase, or orthoclase feldspar (KAlSi3O8), is an important tectosilicate mineral which forms igneous rock. The close-up image shows several Orthoclase crystals.
Ammonium perchlorate, a chemical compound, is a colorless crystalline solid. It is the salt of ammonia and perchloric acid, it is a powerful oxidant.
Magnified close up of mineral encrusted basalt rock.
Free Images: "bestof:Silver carbonate.jpg page is/was here 15 59 25 May 2007 ValPatterson wikipedia en ValPatterson Silver carbonate Samples of inorganic compounds"
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