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ed for the cream to rise. -- Cream nut, the Brazil nut. -- Cream of lime. (a) A scum of calcium carbonate which forms on a solution of milk of lime from the carbon dioxide of the air. (b) A thick creamy emulsion of lime in water. -- Cream of tartar (Chem.), purified tartar or argol; so called because of the crust of…

ee under Compound. -- Iceland crystal, a transparent variety of calcite, or crystallized calcium carbonate, brought from Iceland, and used in certain optical instruments, as the polariscope. -- Rock crystal, or Mountain crystal, any transparent crystal of quartz, particularly of limpid or colorless quartz.…

hus, 3 is the cube root of 27, for 3x3x3 = 27. -- Cube spar (Min.), anhydrite; anhydrous calcium sulphate.

tted with an air-tight cover, and containing some desiccating agent, as sulphuric acid or calcium chloride, above which is suspended the material to be dried, or preserved from moisture.

Having two atoms or equivalents of calcium to the molecule.

Crystallization in two independent forms of the same chemical compound, as of calcium carbonate as calcite and aragonite.

m of oxygen gas through a flame of alcohol upon a ball or disk of lime; -- called also oxycalcium light, or lime light.

ing substituted for, combined with, or replaced by, two atoms of hydrogen; as, oxygen and calcium are dyad elements. See Valence.

external source; as, the walls of limestone caverns sometimes effloresce with nitrate of calcium in consequence of the action in consequence of nitric acid formed in the atmosphere.

m moisture; a desiccator; also, less frequently, an agent employed to absorb moisture, as calcium chloride, or concentrated sulphuric acid.

A binary compound of fluorine with another element or radical. Calcium fluoride (Min.), fluorite, CaF2. See Fluorite.

Calcium fluoride, a mineral of many different colors, white, yellow, purple, green, red, etc., often very beautiful, crystallizing commonly in cubes with perfect octahedral cleavage; also massive. It is used as a flux. Some varieties are used for ornamental vessels. Also called fluor spar, or simply fluor.…

A mineral consisting of the hydrous sulphate of lime (calcium). When calcined, it forms plaster of Paris. Selenite is a transparent, crystalline variety; alabaster, a fine, white, massive variety.

Any substance resembling hepar proper, in appearance; specifically, in homeopathy, calcium sulphide, called also hepar sulphuris calcareum ( Hepar antimonii ( (Old Chem.), a substance, of a liver-brown color, obtained by fusing together antimony sulphide with alkaline sulphides, and consisting of sulphantimonites of th…

rivative of, or compound with, hydroxyl; hydroxide; as, ethyl hydrate, or common alcohol; calcium hydrate, or slaked lime.

are regarded as compounds of hydroxyl, united usually with basic element or radical; as, calcium hydroxide ethyl hydroxide.

A salt of hypochlorous acid; as, a calcium hypochloride.

Oxide of calcium; the white or gray, caustic substance, usually called quicklime, obtained by calcining limestone or shells, the heat driving off carbon dioxide and leaving lime. It develops great heat when treated with water, forming slacked lime, and is an essential ingredient of cement, plastering, mortar, etc.CaO…

A rock consisting chiefly of calcium carbonate or carbonate of lime. It sometimes contains also magnesium carbonate, and is then called magnesian or dolomitic limestone. Crystalline limestone is called marble.

ugham. Luminous paint, a paint made up with some phosphorescent substance, as sulphide of calcium, which after exposure to a strong light is luminous in the dark for a time.