Calcium Collection (page 6)

Diltiazem molecule
Diltiazem, molecular model. This calcium channel blocker drug is used to treat hypertension (high blood pressure) and angina

Eggs and cheese. Eggs are rich in protein and in cholesterol. Cheese is rich in calcium

Cheeses and eggs. Eggs are rich in protein and in cholesterol. Cheeses are rich in calcium. The two cheeses here are a hard cheese (right) and a soft cheese (left)

Food pyramid showing the recommended proportions of food types for a healthy, balanced diet. The largest part of the diet should be carbohydrates from bread, cereal, rice and pasta (pyramid base)

Drinking milk
MODEL RELEASED. Drinking milk. 7-year-old boy holding a glass of milk. Milk is a good source of calcium, which is needed for strong bones and teeth

Teff
MODEL RELEASED. Teff. Woman holding a handful of teff (Eragrostis tef), the staple crop of Ethiopa. It is grown for its reslience to diseases and pests and the grains are used to make injera

Mammoth Hot Springs mineral terrace in the Yellowstone National Park, Wyoming, USA. The terraces form at the outflow of geothermal springs. The water is heated under pressure deep underground

Sir Humphry Davy, English chemist
Sir Humphry Davy (1778-1829), historical artwork. Davy is best known for his invention of the miners safety lamp, also known as the Davy lamp, for use in coal mines

Calcium. Sample of the alkaline earth metal calcium (Ca) on a watch glass. Calcium is the fifth most abundant element in the Earths crust

Grinding mill in cement plant
Cement production. View of a rotating grinding mill used for the production of cement. Marl is a calcium carbonate rich mudstone that also includes clays and aragonite

Marl pit for cement production
Cement production. View of a marl pit that provides the raw material for the production of cement. Marl is a calcium carbonate rich mudstone that also includes clays and aragonite

Nerve impulse propagation, diagram
Nerve impulse propagation. Diagram showing the mechanism of propagation of the action potential (spike in voltage) which is known as a nerve impulse

Sea urchin spine, light micrograph
Sea urchin spine. Polarised light micrograph of a cross-section through a spine from an Echinus sea urchin. Sea urchin spines consist of supporting calcareous radial plates

Conveyor belt at cement works
Cement production. View of a conveyor belt carrying partly crushed limestone at a cement works. The limestone is fired in a furnace before being used as a base for making cement

Limestone quarry at cement works
Quarrying. A power shovel dumping a load of limestone into a truck at a quarry. The limestone is going to be heated and used as a base material for cement manufacture Photographed at the Teploozersky

Kidney stone, artwork
Kidney stone. Artwork of a large kidney stone. Kidney stones are formed when mineral salts, most often involving calcium, accumulate on the inner surfaces of the kidney

Milk processing
Milk being poured into a large vat before processing into dairy products

Stalactite Cave
The Avshalom Stalactite Cave Nature Reserve (also called Soreq Cave) 82-meter-long, 60-meter-wide cave is on the western slopes of the Judean Hills outside the city of Beit Shemesh

Sea cucumber plate. Coloured scanning electron micrograph of an ossicle (plate, orange) from a sea cucumber, surrounded by diatoms

Radiolarian skeleton, artwork
Radiolarian skeleton. Computer artwork of the skeleton (test) of a radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Marine protozoa shells, SEM
Marine protozoa shells, coloured scanning electron micrograph (SEM). The shells (tests) seen here include those of foraminifera, as well as coral spicules, radiolarian tests and cocccoliths

Davy experimenting with alkalis
Coloured 19c engraving of Humphry Davy using electrolysis to isolate the metallic element in alkalis and alkaline earths. He is shown experimenting at the Royal Institution in 1807

Calcium flame test. Calcium burning in air, producing an orange flame. The colour of the flame is caused by electrons that have been excited to a higher energy state

Burning calcium (Ca) in oxygen (O2) gas. Calcium burns with an intense white flame, tinged with red at the edges. It forms calcium oxide (CaO)

Group 2 metals. From the left: beryllium, magnesium, calcium, strontium and barium. Each element in this group has a tendency to lose two electrons. Therefore, these elements are chemically reactive

Humphry Davy, English chemist
Humphry Davy (1778-1829), English chemist. Davy is best known for his invention of the miners safety lamp, also known as the Davy lamp, for use in coal mines

Calcitonin hormone
Calcitonin. Polarized light micrograph of crystals of the hormone calcitonin. Calcitonin is produced by the thyroid gland and helps to control the level of calcium in the blood

Parathyroid hormone, molecular model
Parathyroid hormone. Molecular model showing the primary structure (spheres) and secondary structure (coils) of parathyroid hormone (PTH), or parathormone

Compact bone, light micrograph
Compact bone. Polarised light micrograph of a transverse section through compact bone tissue, showing Haversian canals (circular regions)

EDTA chelating agent molecule
EDTA chelating agent, molecular model. EDTA (ethylenediaminetetraacetic acid) is used as a treatment for heavy metal poisoning, for instance by mercury or lead

Sunset at Mono Lake, CA

Shipworm- xray showing calcium lined burrows in wood and the twin shells that are used as jaws for burrowing
PM-4885 Shipworm - xray showing calcium lined burrows in wood and the twin shells that are used as jaws for burrowing Teredo sp Pat Morris Please note that prints are for personal display purposes

Lake at Blue Grotto, Bonito, Mato Grosso do Sul, Brazil (rr)
Andre Seale / SpecialistStock

A Border Collie dog chewing a bone
Ashley Cooper / SpecialistStock

a free range chicken and eggs in an animal sanctuary near Alston, UK
Ashley Cooper / SpecialistStock

Organic milk in a Tesco supermarket in Carlisle UK
Ashley Cooper / SpecialistStock

Cockle shells at Hest Bank Morecambe Bay Lancashire UK
Ashley Cooper / SpecialistStock

Snails mating
Ashley Cooper / SpecialistStock

Calcium formations, Pamukkale, UNESCO World Heritage Site, Anatolia, Turkey, Asia Minor, Asia

Milk bubbles

"Desert Rose" - Calcium sulphate Sahara Desert, Tunisia and Algeria 1E50T4213
CAN-2179 "Desert Rose" - Calcium sulphate Sahara Desert, Tunisia and Algeria Desert Rose is a form of Calcium sulphate. It is a form of Gypsum

Rock - Calcium Carbonate Sahara Desert, Morocco 3E50T4231
CAN-2178 Rock - Calcium Carbonate Sahara Desert, Morocco John Cancalosi Please note that prints are for personal display purposes only and may not be reproduced in any way

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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.