colemanite

cole·man·ite

C0473400 (kōl′mə-nīt′)n. A natural white or colorless hydrated calcium borate, Ca₂B₆O₁₁·5H₂O, that is formed in conjunction with borax deposits and is a principal source of boric acid.

[After William Tell Coleman (1824-1893), American merchant in California.]

colemanite

(ˈkəʊlməˌnaɪt) n (Minerals) a colourless or white glassy mineral consisting of hydrated calcium borate in monoclinic crystalline form. It occurs with and is a source of borax. Formula: Ca2B6O11.5H2O[C19: named after William T. Coleman (1824–93), American pioneer, owner of the mine in which it was discovered]

cole•man•ite

(ˈkoʊl məˌnaɪt)

n. a mineral, hydrous calcium borate, Ca₂B₆O₁₁∙5H₂O, occurring in colorless or milky white crystals. [1884; after W. T. Coleman of San Francisco, in whose mine it was found]

Translations

колеманит

Colemanite

colemanite

[′kōl·mə‚nīt] (mineralogy) Ca₂B₆O₁₁·5H₂O A colorless or white hydrated borate mineral that crystallizes in the monoclinic system and occurs in massive crystals or as nodules in clay.

Colemanite

(named for W. T. Coleman, 1824–93, the owner of the mine where it was discovered), a mineral of the class of borates. In terms of chemical composition it is a hydrous calcium borate, Ca[B₂BO₄(OH)₃].H₂O. Complex chains composed of B(O, OH)₄ tetrahedrons and BO₃ triangles bonded into a three-dimensional structure through Ca²⁺ ions and H₂O buffer molecules are present in the crystal structure. Colemanite crystallizes in a monoclinic system, forming short, colorless crystals of columnar or dipyramidal appearance, as well as continuous fine-grained masses. Hardness on the mineralogical scale, 4–4.5; density, 2,440–2,450 kg/m³.

Colemanite is formed by precipitation, along with other borates (hydroboracite, inyoite, and borax), gypsum, and clayey deposits, from boron-containing brines of continental lakes. It is also found in the deposits of hot springs. Along with the other borates, colemanite is used as a boron ore.

单词	colemanite
释义	colemanite cole·man·ite C0473400 (kōl′mə-nīt′)n. A natural white or colorless hydrated calcium borate, Ca₂B₆O₁₁·5H₂O, that is formed in conjunction with borax deposits and is a principal source of boric acid. [After William Tell Coleman (1824-1893), American merchant in California.] colemanite (ˈkəʊlməˌnaɪt) n (Minerals) a colourless or white glassy mineral consisting of hydrated calcium borate in monoclinic crystalline form. It occurs with and is a source of borax. Formula: Ca2B6O11.5H2O[C19: named after William T. Coleman (1824–93), American pioneer, owner of the mine in which it was discovered] cole•man•ite (ˈkoʊl məˌnaɪt) n. a mineral, hydrous calcium borate, Ca₂B₆O₁₁∙5H₂O, occurring in colorless or milky white crystals. [1884; after W. T. Coleman of San Francisco, in whose mine it was found] Translations колеманит Colemanite colemanite [′kōl·mə‚nīt] (mineralogy) Ca₂B₆O₁₁·5H₂O A colorless or white hydrated borate mineral that crystallizes in the monoclinic system and occurs in massive crystals or as nodules in clay. Colemanite (named for W. T. Coleman, 1824–93, the owner of the mine where it was discovered), a mineral of the class of borates. In terms of chemical composition it is a hydrous calcium borate, Ca[B₂BO₄(OH)₃].H₂O. Complex chains composed of B(O, OH)₄ tetrahedrons and BO₃ triangles bonded into a three-dimensional structure through Ca²⁺ ions and H₂O buffer molecules are present in the crystal structure. Colemanite crystallizes in a monoclinic system, forming short, colorless crystals of columnar or dipyramidal appearance, as well as continuous fine-grained masses. Hardness on the mineralogical scale, 4–4.5; density, 2,440–2,450 kg/m³. Colemanite is formed by precipitation, along with other borates (hydroboracite, inyoite, and borax), gypsum, and clayey deposits, from boron-containing brines of continental lakes. It is also found in the deposits of hot springs. Along with the other borates, colemanite is used as a boron ore.
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