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Zaffer :: Zaffer (n.) A pigment obtained, usually by roasting cobalt glance with sand or quartz, as a dark earthy powder. It consists of crude cobalt oxide, or of an impure cobalt arseniate. It is used in porcelain painting, and in enameling pottery, to produce a blue color, and is often confounded with smalt, from which, however, it is distinct, as it contains no potash. The name is often loosely applied to mixtures of zaffer proper with silica, or oxides of iron, manganese, etc..

Phillipsite :: Phillipsite (n.) A hydrous silicate of aluminia, lime, and soda, a zeolitic mineral commonly occurring in complex twin crystals, often cruciform in shape; -- called also christianite..

Vermiculite :: Vermiculite (n.) A group of minerals having, a micaceous structure. They are hydrous silicates, derived generally from the alteration of some kind of mica. So called because the scales, when heated, open out into wormlike forms..

Silicate :: Silicate (n.) A salt of silicic acid.

Edingtonite :: Edingtonite (n.) A grayish white zeolitic mineral, in tetragonal crystals. It is a hydrous silicate of alumina and baryta..

Albite :: Albite (n.) A mineral of the feldspar family, triclinic in crystallization, and in composition a silicate of alumina and soda. It is a common constituent of granite and of various igneous rocks. See Feldspar..

Allanite :: Allanite (n.) A silicate containing a large amount of cerium. It is usually black in color, opaque, and is related to epidote in form and composition..

Hauynite :: Hauynite (n.) A blue isometric mineral, characteristic of some volcani/ rocks. It is a silicate of alumina, lime, and soda, with sulphate of lime..

Unisilicate :: Unisilicate (n.) A salt of orthosilicic acid, H4SiO4; -- so called because the ratio of the oxygen atoms united to the basic metals and silicon respectively is 1:1; for example, Mg2SiO4 or 2MgO.SiO2..

Basilical :: Basilical (a.) Royal; kingly; also, basilican..

Cerite :: Cerite (n.) A mineral of a brownish of cherry-red color, commonly massive. It is a hydrous silicate of cerium and allied metals..

Siliceous :: Siliceous (a.) Of or pertaining to silica; containing silica, or partaking of its nature..

Fluo- :: Fluo- () A combining form indicating fluorine as an ingredient; as in fluosilicate, fluobenzene..

Pollucite :: Pollucite (n.) A colorless transparent mineral, resembling quartz, occurring with castor or castorite on the island of Elba. It is a silicate of alumina and caesia. Called also pollux..

Speiss :: Speiss (n.) A regulus consisting essentially of nickel, obtained as a residue in fusing cobalt and nickel ores with silica and sodium carbonate to make smalt..

Chloropal :: Chloropal (n.) A massive mineral, greenish in color, and opal-like in appearance. It is essentially a hydrous silicate of iron..

Frett :: Frett (n.) A vitreous compound, used by potters in glazing, consisting of lime, silica, borax, lead, and soda..

Silicify :: Silicify (v. t.) To convert into, or to impregnate with, silica, or with the compounds of silicon..

Thorite :: Thorite (n.) A mineral of a brown to black color, or, as in the variety orangite, orange-yellow. It is essentially a silicate of thorium..

Datolite :: Datolite (n.) A borosilicate of lime commonly occuring in glassy,, greenish crystals..

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