Calcium Collection (page 3)

Sardines, emmental cheese, cottage cheese, yoghurt

Bowl of goats cheese salad, water jug and bottle of olive oil in background, front view

A round of camembert cheese with section missing, triangular slice of brie on wooden chopping board

Banded snail (Cepea sp. ) on cuttlefish bone, a source of calcium
Banded snail (Cepea sp.) on cuttlefish bone, a source of calcium

Pregnant woman drinking milk C018 / 1702
Pregnant woman drinking milk

Chocolate milkshake, artwork F007 / 8266
Chocolate milkshake, artwork

Fibrinogen molecule C014 / 0473
Fibrinogen. Molecular model showing the structure of the blood clotting glycoprotein fibrinogen (factor I). The molecule consists of two sets of alpha (grey)

Bone structure, artwork C016 / 7504
Bone structure. Computer artwork showing bone trabeculae. Trabeculae are the bars of bone that form a honeycombed hollow network, and make up the structure of spongy bone, the inner layer of a bone

Fibrinogen molecule C014 / 0472
Fibrinogen. Molecular model showing the secondary structure of the blood clotting glycoprotein fibrinogen (factor I). The molecule consists of two sets of alpha (grey)

Radiolarian, SEM C014 / 4862
Radiolarian. Coloured scanning electron micrograph (SEM) of the shell or test of a radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Radiolarian, SEM C014 / 4863
Radiolarian. Coloured scanning electron micrograph (SEM) of the shell or test of a radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Calcium carbonate, SEM C017 / 8495
False-coloured Scanning Electron Micrograph (SEM) of microscopic crystals of calcium carbonate. Calcium carbonate has many polymorphs (different shaped) crystal forms

Calcium carbonate, SEM C017 / 8497
False-coloured Scanning Electron Micrograph (SEM) of microscopic crystals of calcium carbonate. Calcium carbonate has many polymorphs (different shaped) crystal forms

Calcium carbonate, SEM C017 / 8491
False-coloured Scanning Electron Micrograph (SEM) of microscopic crystals of calcium carbonate. Calcium carbonate has many polymorphs (different shaped) crystal forms

Bone structure, artwork C016 / 7545
Bone structure. Computer artwork showing bone trabeculae. Trabeculae are the bars of bone that form a honeycombed hollow network, and make up the structure of spongy bone, the inner layer of a bone

Perovskite mineral, molecular model C016 / 5803
Perovskite mineral, molecular model. Perovskite is a mineral form of calcium titanate, with the chemical formula Ca.Ti.O3

Perovskite mineral, molecular model C016 / 5802
Perovskite mineral, molecular model. Perovskite is a mineral form of calcium titanate, with the chemical formula Ca.Ti.O3

Thomsonite mineral specimen C016 / 4930
Thomsonite mineral specimen. Thomsonite consists of hydrated sodium calcium aluminum silicate. It forms tight, fibrous crystals

Large voltaic pile, 19th century C016 / 3680
Voltaic pile. Part of a large voltaic pile made by Sir Humphrey Davy in 1808. Seen here is a trough containing 50 zinc plates. These would have been filled with dilute sulphuric acid

Sample of calcium made by Davy C016 / 3667
Calcium. Sample of metallic calcium made by Sir Humphrey Davy in 1808. Davy made this by the electrolysis of a mixture of calcium oxide and mercury (II) oxide

Mesolite C013 / 6720
Mesolite crystals. Radiating crystals (white) of the mineral mesolite in their host rock. Mesolite (hydrated sodium calcium aluminium silicate)

Mesolite C013 / 6647
Mesolite crystals. Radiating crystals (white) of the mineral mesolite in their host rock. Mesolite (hydrated sodium calcium aluminium silicate)

Mesolite C013 / 6646
Mesolite crystals. Radiating crystals (white) of the mineral mesolite in their host rock. Mesolite (hydrated sodium calcium aluminium silicate)

Sponge spicules, SEM
Sponge spicules. Coloured scanning electron micrograph (SEM) of spicules from a sea sponge. Sponges are primitive aquatic organisms that filter food from the water

Natural sponge, SEM
Natural sponge. Coloured scanning electron micrograph (SEM) showing the branching structure of the body of a natural sponge (phylum porifera)

Chrome diopside
Two variations of a diopside gemstone (calcium magnesium silicate). Left: Deep-green faceted cut stone; locality unknown. Right: Small translucent green detached crystal from Outokumpu, Finland

Birthstone Series: Lazurite

Uvarovite garnets comprise of (calcium chromium silicate). They are characterized by their green colour and rounded crystals of either 12 or 24 faces

Gobbinsite comprises of (hydrated sodium potassium calcium aluminum silicate) and derives from the zeolite group. Specimen found nr. Black Cave, Island Magee, Co. Antrim

Gypsum is comprised of (hydrated calcium sulphate). It forms from the evaporation of highly saline waters producing massive beds

Rhodonite
A pink specimen of rhodonite (manganese iron magnesium calcium silicate). Rhodon is greek for rose. Specimen from the Natural History Museum, London

Fluorite, pale green octahedron
With calcite, galena and pyrite. Its properties include fluorescence and cubed crystals. Specimen from Glengowla East mine, Oughterard, Co. Galway, Eire

Tarnowitzite, a variety of aragonite
Pale yellowish radiating prisms of aragonite on a matrix. Aragonite comprises of (calcium carbonate). Part of specimen from Tsumeb, Namibia

Lazurite comprises of (sodium calcium aluminum silicate sulphur sulphate). Due to its unique rich colour, it is a semi-precious stone and is often used in jewellery making

Gypsum crystals - A desert rose
Gypsum is comprised of (hydrated calcium sulphate). It forms from the evaporation of highly saline waters producing this ornate arrangement of crystals

Foraminiferan remains from the White Cliffs of Dover, U.K. The cliffs are made up of unimaginable numbers of chalky shells of long dead marine animals

Dolomite
A specimen of the mineral dolomite (calcium magnesium carbonate) from Eugui, Navarra, Spain. This mineral was named after the French mineralogist Deodat de Dolomieu

Scheelite
Crystals of scheelite (calcium tungstate), an important ore of tungsten from the collections of the Natural History Museum, London

Heulandite crystal group on matrix, from Kilpatrick, Dumbartonshire. One of the group of Zeolites. Zeolites are microporous crystalline solids containing silicon, aluminium and oxygen

Andradite is variety dementoid, garnet and comprises of (calcium iron silicate). These crystals are in a matrix from Lanzada, Valtellina, Italy and the cut stone is from an unknown locality

Anhydrite
A specimen of the mineral anhydrite (calcium sulphate) from the Simplon tunnel through the Alps which links Switzerland to Italy

Autunite comprises of (hydrated calcium uranyl phosphate). This is a green, radioactive, highly fluorescent mineral. This specimen is from the Natural History Museum, London

Cancrinite comprises of (sodium calcium aluminum silicate carbonate) and is one of the rarer members of the feldspathoid group. Specimen from the Natural History Museum, London

Stilbite comprises of (hydrated sodium calcium aluminum silicate) and derives from the Zeolite group. Specimen from the collections of The Natural History Museum, London

Thomsonite

Labradorite carving

Labradorite
A close-up of the surface of a rich blue specimen of the mineral labradorite from labrador. Labradorite (calcium sodium aluminum silicate)

Fluorite
6mm octahedral purple crystal on calcite collected from the Smith Vein, 1987. Green centre of the crystal does not show on film. Specimen from Carrock mine, Caldbeck, Cumbria

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"Calcium: The Building Block of Strong Bones and Beyond" Compact bone, light micrograph: Delve into the intricate structure of our skeletal system with a mesmerizing view of compact bone under a microscope. "Drink More Milk" poster: Reminding us of the importance of calcium-rich dairy products in maintaining healthy bones and teeth. Blue John vase: Explore the beauty and versatility minerals through this stunning example found in Derbyshire, England. Iceland spar: Discover the fascinating optical properties carbonate crystals as you gaze through an Iceland spar specimen. Sprouting beans: Witness nature's way of utilizing calcium to support plant growth as tiny sprouts emerge from seeds bursting with life. Perovskite: Uncover the wonders of modern technology as scientists harness calcium-based compounds like perovskite for solar cells and other applications. Polished slab of labradorite: Marvel at the iridescent play-of-color exhibited by this feldspar mineral containing traces of essential elements such as calcium. Humphry Davy, English chemist: Learn about one of history's great minds who discovered several alkaline earth metals, including isolating pure calcium for the first time in 1808. Cave Pearls, formed as dripping water rich in calcium salts deposits calcite around them: Journey underground to witness how stalactites form over thousands or millions of years due to slow drips enriched with dissolved calcium salts forming beautiful cave pearls made up primarily out calcite crystals Calcite, Ball Eye Mine, Cromford, Derbyshire, England : Admire a magnificent sample from Ball Eye Mine showcasing calcite's unique crystal formations created by geological processes involving abundant amounts oof Calcium ions Penicillin bottle : Acknowledge how even life-saving medications like penicillin owe their existence partly to discoveries made possible by calcium-rich culture media used in their production.