erythrite

er·y·thrite

E0205200 (ĕr′ə-thrīt′)n. A reddish secondary cobalt mineral, CO₃(AsO₄)₂·8H₂O, found in veins bearing cobalt and arsenic and used in coloring glass.

erythrite

(ɪˈrɪθraɪt) n1. (Minerals) Also called: cobalt bloom a pink to purple secondary mineral consisting of hydrated cobalt arsenate in monoclinic crystalline form. Formula: Co3(AsO4)2.8H2O2. (Elements & Compounds) another name for erythritol

e•ryth•rite

(ɪˈrɪθ raɪt, ˈɛr əˌθraɪt)

n. a mineral, hydrous cobalt arsenate, Co₃As₂O₈∙8H₂O, occurring as a powdery, usu. red incrustation on cobalt minerals; cobalt bloom. [1835–45; < Greek erythr(ós) red + -ite¹]

Thesaurus

Noun

erythrite - a reddish mineral consisting of hydrated cobalt arsenate in monoclinic crystalline form and used in coloring glass; usually found in veins bearing cobalt and arseniccobalt bloommineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition

Erythrite

erythrite

[′er·ə‚thrīt] (mineralogy) Co₃(AsO₄)₂·8₂O A crimson, peach, or pink-red secondary oxidized cobalt mineral that occurs in monoclinic crystals, in globular and reniform masses, or in earthy forms. Also known as cobalt bloom; cobalt ocher; erythrine; peachblossom ore; red cobalt. (organic chemistry) erythritol

Erythrite

(also cobalt bloom), an arsenate mineral, with the chemical composition C0₃[As0₄]-8H₂O. Nickel substitutes iso-morphically for cobalt; admixtures of zinc, magnesium, and iron are also observed. Erythrite crystallizes in the monoclinic system. It is encountered primarily in the form of crusts, concretions, and earthy aggregates. Its color is pinkish red; with increasing nickel content, the color gradually changes to pale pink and gray and then to apple green, which is characteristic of the nickel arsenate annabergite, Ni₃[AsO₄] · 8H₂0, which is similar in structure to erythrite but occurs less frequently. Erythrite has a hardness of 1.5–2.5 on Mohs’ scale and a density of 3,100 kg/m³.

Erythrite is the product of the weathering of cobalt and nickelcobalt arsenides and sulfoarsenides. Upon oxidation, it is altered to black-colored hydroxides of trivalent cobalt (heterogenites). Its bright color is an important prospecting guide to the presence of arsenic ores of cobalt and nickel.

erythrite

er·y·thrite

erythrite

e•ryth•rite

Erythrite

erythrite

Erythrite

erythrite

Synonyms for erythrite

noun a reddish mineral consisting of hydrated cobalt arsenate in monoclinic crystalline form and used in coloring glass

Synonyms

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