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closeup of sample of natural mineral from geological collection - Galena and Sphalerite crystals on quartz rock isolated on white background
Chemical formula of Cortisol
Macro cubical pyrite on white matrix isolated on gray background
Pegmatite rock close up with many crystals.
Melatonin is a hormone, released primarily by the pineal gland, that regulates the sleep–wake cycle. 3D ball-and-stick model, white background
A molecular model of Bisphenol A or BPA.  It is a common building block in the production of many epoxy resins and plastics including polycarbonate plastic. As such it is present in a huge range of food packaging and household products. There are now concerns about its health effects, particularly its effect on children, infants and fetuses.   Isolated on white.
specimen of natural raw malachite rock cutout on white background
Galena lead metal mineral rock sample
epidote from Medina de Pomar, Spain isolated on white background
Mineral Fusinus sp. Pliozän
Cassiterite tin oxide mineral isolated on white background
Hydrangea before blooming
This Tourmaline photographed with the macro in best studio quality and high resolution
Chemical formula of Estrogen
Glucosamine (C6H13NO5) is an amino sugar. treatment for osteoarthritis. Chemical structure model: Ball and Stick + Balls + Space-Filling. 3D illustration.
Pegmatite mineral close up
Macro of a stone Talc mineral on a black background close up
Abstract H2, Hydrogen Icon in Water Sphere
Raw labradorite of natural mineral from geological collection. White background
A molecular model of the flavonoid Quercetin.  An antioxidant and anti-inflamatory, it is used as a nutritional suplement.  It is commonly found in many fruits and vegetables and is a significant chemical component of tea.  Isolated on white.
Photo of olivine gemstone also called peridot
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.
A macro image of field  penny cress also know as Thlaspi arvense
Raw orange calcite stone macro isolated on white background
Crystalized metamorphic rock in extreme close-up
macro shooting of geological collection mineral - crystals of Vesuvianite (Idocrase, Vesuvian) on rock surface
Structural model of Benzene molecule
Creative illustrations on the micro molecular structure
Chemical formula of Aldosterone
Free Images: "bestof:Niobium pentachloride.jpg niobium V chloride NbCl<sub>5</sub> The picture was taken in the open air and a white crust of niobium V oxide Nb<sub>2</sub>O<sub>5</..."
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New_Zealand_officers_eating_breakfast_in_captured_German_trenches.jpg
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Niobium-tetrachloride-xtal-1977-A-3D-balls.png
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Calcite Nb Medford.jpg
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Ten-volt chip (5940513007).jpg
Noiseless Amplifier (5941060720).jpg
Antimony trioxide.jpg
Magnesium oxide.jpg
Hydrochloric acid ammonia.jpg
Deck boy at Norwegian merchant ship in convoy to Murmansk autumn 1943.jpg
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Frederickshald_(JW_Edy_plate_73).jpg
Fortifications_at_Larkoul_(JW_Edy_plate_65).jpg
Town_of_Porsground_(JW_Edy_plate_35).jpg
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