witherite

with·er·ite

W0192700 (wĭth′ə-rīt′)n. A white, yellow, or gray mineral, chiefly BaCO₃.

[German Witherit, after William Withering (1741-1799), British physician.]

witherite

(ˈwɪðəˌraɪt) n (Minerals) a white, grey, or yellowish mineral consisting of barium carbonate in orthorhombic crystalline form: occurs in veins of lead ore. Formula: BaCO3[C18: named after W. Withering (1741–99), English scientist, who first described it]

with•er•ite

(ˈwɪð əˌraɪt)

n. a white to grayish mineral, barium carbonate, BaCO₃, occurring in crystals and masses. [1785–95; after W. Withering (1741–99), who first described it; see -ite¹]

witherite

witherite:

see carbonatecarbonate
, chemical compound containing the carbonate radical or ion, CO₃⁻². Most familiar carbonates are salts that are formed by reacting an inorganic base (e.g., a metal hydroxide) with carbonic acid.
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Witherite

(named for the British scientist W. Withering, 1741-99), a mineral; chemical formula BaCO₃. It occurs as white, grayish, or yellow continuous gemmiform or fibrous crystalline masses; less frequently as fine rhombic crystals. Density, 4,270-4,350 kg/m³; hardness on the mineralogical scale, 3.5-4.0. In nature witherite is formed from hot internal water; it occurs in veins, sometimes along with barite, galena, and sphalerite. On the earth’s surface witherite readily becomes secondary barite. Witherite can be used as the ore for producing barium and its salts. Deposits of it are rare.

G. P. BARSANOV

witherite

[′with·ə‚rīt] (mineralogy) BaCO₃ A yellowish- or grayish-white mineral of the aragonite group that has orthorhombic symmetry, hardness of 3¼ on Mohs scale, and specific gravity 4.3.

单词	witherite
释义	witherite with·er·ite W0192700 (wĭth′ə-rīt′)n. A white, yellow, or gray mineral, chiefly BaCO₃. [German Witherit, after William Withering (1741-1799), British physician.] witherite (ˈwɪðəˌraɪt) n (Minerals) a white, grey, or yellowish mineral consisting of barium carbonate in orthorhombic crystalline form: occurs in veins of lead ore. Formula: BaCO3[C18: named after W. Withering (1741–99), English scientist, who first described it] with•er•ite (ˈwɪð əˌraɪt) n. a white to grayish mineral, barium carbonate, BaCO₃, occurring in crystals and masses. [1785–95; after W. Withering (1741–99), who first described it; see -ite¹] witherite witherite: see carbonatecarbonate , chemical compound containing the carbonate radical or ion, CO₃⁻². Most familiar carbonates are salts that are formed by reacting an inorganic base (e.g., a metal hydroxide) with carbonic acid. ..... Click the link for more information. . Witherite (named for the British scientist W. Withering, 1741-99), a mineral; chemical formula BaCO₃. It occurs as white, grayish, or yellow continuous gemmiform or fibrous crystalline masses; less frequently as fine rhombic crystals. Density, 4,270-4,350 kg/m³; hardness on the mineralogical scale, 3.5-4.0. In nature witherite is formed from hot internal water; it occurs in veins, sometimes along with barite, galena, and sphalerite. On the earth’s surface witherite readily becomes secondary barite. Witherite can be used as the ore for producing barium and its salts. Deposits of it are rare. G. P. BARSANOV witherite [′with·ə‚rīt] (mineralogy) BaCO₃ A yellowish- or grayish-white mineral of the aragonite group that has orthorhombic symmetry, hardness of 3¼ on Mohs scale, and specific gravity 4.3. MedicalSeecarbonate
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