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Amarine :: Amarine (n.) A characteristic crystalline substance, obtained from oil of bitter almonds..

Manganite :: Manganite (n.) One of the oxides of manganese; -- called also gray manganese ore. It occurs in brilliant steel-gray or iron-black crystals, also massive..

Furfurine :: Furfurine (n.) A white, crystalline base, obtained indirectly from furfurol..

Eucalyn :: Eucalyn (n.) An unfermentable sugar, obtained as an uncrystallizable sirup by the decomposition of melitose; also obtained from a Tasmanian eucalyptus, -- whence its name..

Base :: Base (n.) The basal plane of a crystal.

Axinite :: Axinite (n.) A borosilicate of alumina, iron, and lime, commonly found in glassy, brown crystals with acute edges..

Cryptopine :: Cryptopine (n.) A colorless crystalline alkaloid obtained in small quantities from opium.

Diphenyl :: Diphenyl (n.) A white crystalline substance, C6H5.C6H5, obtained by leading benzene through a heated iron tube. It consists of two benzene or phenyl radicals united..

Melilite :: Melilite (n.) A mineral occurring in small yellow crystals, found in the lavas (melilite basalt) of Vesuvius, and elsewhere..

Boron :: Boron (n.) A nonmetallic element occurring abundantly in borax. It is reduced with difficulty to the free state, when it can be obtained in several different forms; viz., as a substance of a deep olive color, in a semimetallic form, and in colorless quadratic crystals similar to the diamond in hardness and other properties. It occurs in nature also in boracite, datolite, tourmaline, and some other minerals. Atomic weight 10.9. Symbol B..

Wolframite :: Wolframite (n.) Tungstate of iron and manganese, generally of a brownish or grayish black color, submetallic luster, and high specific gravity. It occurs in cleavable masses, and also crystallized. Called also wolfram..

Cinnamone :: Cinnamone (n.) A yellow crystalline substance, (C6H5.C2H2)2CO, the ketone of cinnamic acid..

Crystallography :: Crystallography (n.) A discourse or treatise on crystallization.

Halo :: Halo (n.) A luminous circle, usually prismatically colored, round the sun or moon, and supposed to be caused by the refraction of light through crystals of ice in the atmosphere. Connected with halos there are often white bands, crosses, or arches, resulting from the same atmospheric conditions..

Vicine :: Vicine (n.) An alkaloid ex tracted from the seeds of the vetch (Vicia sativa) as a white crystalline substance.

Diclinic :: Diclinic (a.) Having two of the intersections between the three axes oblique. See Crystallization.

Phthalimide :: Phthalimide (n.) An imido derivative of phthalic acid, obtained as a white crystalline substance, C6H4.(CO)2NH, which has itself (like succinimide) acid properties, and forms a series of salts. Cf. Imido acid, under Imido..

Linarite :: Linarite (n.) A hydrous sulphate of lead and copper occurring in bright blue monoclinic crystals.

Form :: Form (n.) The combination of planes included under a general crystallographic symbol. It is not necessarily a closed solid.

Phloretin :: Phloretin (n.) A bitter white crystalline substance obtained by the decomposition of phlorizin, and formerly used to some extent as a substitute for quinine..

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