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Melatonin is a hormone, released primarily by the pineal gland, that regulates the sleep–wake cycle. 3D ball-and-stick model, white background
Chemical formula of Cortisol
Macro cubical pyrite on white matrix isolated on gray background
Magnesium supplement pills placed on a Periodic table tile
specimen of natural raw malachite rock cutout on 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.
Mineral Fusinus sp. Pliozän
Glucosamine (C6H13NO5) is an amino sugar. treatment for osteoarthritis. Chemical structure model: Ball and Stick + Balls + Space-Filling. 3D illustration.
epidote from Medina de Pomar, Spain isolated on white background
Pegmatite rock close up with many crystals.
Cassiterite tin oxide mineral isolated on white background
Hydrangea before blooming
closeup of sample of natural mineral from geological collection - Galena and Sphalerite crystals on quartz rock isolated on white background
Chemical formula of Estrogen
This Tourmaline photographed with the macro in best studio quality and high resolution
Abstract H2, Hydrogen Icon in Water Sphere
Big natural stone green amber on white background
Pegmatite mineral close up
Raw labradorite of natural mineral from geological collection. White background
Zeolite crystals in cavities of Igneous volcanic basalt rock
Photo of olivine gemstone also called peridot
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.
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
Tryptophan or Trp is an alpha-amino acid that is used in the biosynthesis of proteins, 3d illustration
Structural model of Benzene molecule
Chloroquini phosphas, chloroquine medicine substance. Drug introduced as treatment for coronavirus (SARS-CoV-2). Active in COVID-19 supportive therapy. Chemical formula written next to white pills.
Chemical formula of Aldosterone
Glutamine is an α-amino acid that is used in the biosynthesis of proteins. Its side chain is similar to that of glutamic acid, except the carboxylic acid group is replaced by an amide. It is classified as a charge-neutral, polar amino acid. 3D ball-and-stick model, white background
Quartz + clinozoisite, Site: Spain, Elche
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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
Urnes_stavkyrkje.jpeg
RobertHasselKabelvaag.jpg
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H._C._White_Co._2126_An_afternoon_Concert_at_the_Tivoli_Beer_Garden,_Hanover,_Germany._1901._The_Perfect_Stereograph_Trade_Mark_Patented_April,_14,_1903._Back_side.jpg
Frederickshald_(JW_Edy_plate_73).jpg
Fortifications_at_Larkoul_(JW_Edy_plate_65).jpg
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