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Goethite :: Goethite (n.) A hydrous oxide of iron, occurring in prismatic crystals, also massive, with a fibrous, reniform, or stalactitic structure. The color varies from yellowish to blackish brown..

Crystallometry :: Crystallometry (n.) The art of measuring crystals.

Furile :: Furile (n.) A yellow, crystalline substance, (C4H3O)2.C2O2, obtained by the oxidation of furoin..

Strychnos :: Strychnine (n.) A very poisonous alkaloid resembling brucine, obtained from various species of plants, especially from species of Loganiaceae, as from the seeds of the St. Ignatius bean (Strychnos Ignatia) and from nux vomica. It is obtained as a white crystalline substance, having a very bitter acrid taste, and is employed in medicine (chiefly in the form of the sulphate) as a powerful neurotic stimulant. Called also strychnia, and formerly strychnina..

Calcite :: Calcite (n.) Calcium carbonate, or carbonate of lime. It is rhombohedral in its crystallization, and thus distinguished from aragonite. It includes common limestone, chalk, and marble. Called also calc-spar and calcareous spar..

Hydrous :: Hydrous (a.) Containing water of hydration or crystallization.

Litharge :: Litharge (n.) Lead monoxide; a yellowish red substance, obtained as an amorphous powder, or crystallized in fine scales, by heating lead moderately in a current of air or by calcining lead nitrate or carbonate. It is used in making flint glass, in glazing earthenware, in making red lead minium, etc. Called also massicot..

Phanerocrystalline :: Phanerocrystalline (a.) Distinctly crystalline; -- used of rocks. Opposed to cryptocrystalline.

Warwickite :: Warwickite (n.) A dark brown or black mineral, occurring in prismatic crystals imbedded in limestone near Warwick, New York. It consists of the borate and titanate of magnesia and iron..

Desmine :: Desmine (n.) Same as Stilbite. It commonly occurs in bundles or tufts of crystals.

Carbazol :: Carbazol (n.) A white crystallized substance, C12H8NH, derived from aniline and other amines..

Cleavage :: Cleavage (n.) The quality possessed by many crystallized substances of splitting readily in one or more definite directions, in which the cohesive attraction is a minimum, affording more or less smooth surfaces; the direction of the dividing plane; a fragment obtained by cleaving, as of a diamond. See Parting..

Phorone :: Phorone (n.) A yellow crystalline substance, having a geraniumlike odor, regarded as a complex derivative of acetone, and obtained from certain camphor compounds..

Glycosine :: Glycosine (n.) An organic base, C6H6N4, produced artificially as a white, crystalline powder, by the action of ammonia on glyoxal..

Galactose :: Galactose (n.) A white, crystalline sugar, C6H12O6, isomeric with dextrose, obtained by the decomposition of milk sugar, and also from certain gums. When oxidized it forms mucic acid. Called also lactose (though it is not lactose proper)..

Wollastonite :: Wollastonite (n.) A silicate of lime of a white to gray, red, or yellow color, occurring generally in cleavable masses, rarely in tabular crystals; tabular spar..

Crystallite :: Crystallite (n.) A minute mineral form like those common in glassy volcanic rocks and some slags, not having a definite crystalline outline and not referable to any mineral species, but marking the first step in the crystallization process. According to their form crystallites are called trichites, belonites, globulites, etc..

Salt :: Salt (n.) The chloride of sodium, a substance used for seasoning food, for the preservation of meat, etc. It is found native in the earth, and is also produced, by evaporation and crystallization, from sea water and other water impregnated with saline particles..

Cocaine :: Cocaine (n.) A powerful alkaloid, C17H21NO4, obtained from the leaves of coca. It is a bitter, white, crystalline substance, and is remarkable for producing local insensibility to pain..

Valeramide :: Valeramide (n.) The acid amide derivative of valeric acid, obtained as a white crystalline substance..

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