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Calcium
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Autunite
Hierve el Agua, San Isidro Roaguia, Oaxaca, Mexico
Hierve el Agua, San Isidro Roaguia, Oaxaca, Mexico
Hierve el Agua, San Isidro Roaguia, Oaxaca, Mexico
Hierve el Agua, San Isidro Roaguia, Oaxaca, Mexico
Hierve el Agua, San Isidro Roaguia, Oaxaca, Mexico
Urinary stones
Humphry Davy using electrical decomposition to
A woodcut engraving depicting the production of saltpetre
Gustave Robert Kirchhoff (1824-1887), German physicist
Friedrich Wohler (1800-1882) German organic chemist
Production of Salpetre (Nitre, Potassium Nitrate
Balance being used by Indian Betel dealer to weigh his goods
Electric discharges in rarefied gases. 2, 3, 4
Friedrich Wohler (1800-1882), German organic chemist
Ammonia plant Merseburg GmbH, 1937
Rachitic children, 1919
Advertisement for Cadbury's Bourn-Vita
Coral Reef and Cuttlefish, 19th century
Dry Ice
Friedrich Wohler, German Chemist
Folded Limestone
Aragonite
Birthstone Series: Lazurite
Friedrich Wohler, German Chemist
Francis Glisson, English Physician and Anatomist
Milk Builds Strong Bodies
Calcite
Calcite
Conichalcite
Quaternary fissure breccia
Gypsum
Dolomite
Fluorite
Calcite
Belt-hook in lapis lazuli
Lapis lazuli from Afghanistan
Lapis lazuli from Siberia
Polished slab of labradorite
Chalk
Lapis lazuli
Labradorite carving
Labradorite
Labradorite
Halysites a coral
Arachnophyllum, coral
Lithostrotion, coral
Lonsdaleia, coral
Heulandite
Calcite
Perovskite
Gypsum crystals - A desert rose
Mesolite
Calcareous Sandstone, Bermuda 1873
Gypsum
Gobbinsite
Fluorite, pale green octahedron
Dolomite
Calcite
Apatite
Belt-hook in lapis lazuli
Mesolite
Mesolite
Blue John vase
Belt-hook in lapis lazuli
Iceland spar
Iceland spar
Nephrite jade
Foraminiferan remains
Tarnowitzite, a variety of aragonite
Calcite (Iceland spar)
Pyrochlore
Pyrochlore
Uvarovite garnet
Rhodonite
Coelosphaeridium, calcareous alga
Pentremites spicatus, blastoid
Raphiidonema faringdone, calcareous sponge
Fluorite
Fluorite
Fluorite
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