Smaltite

Smaltite

Smaltite is a variety of the mineral skutterudite consisting of cobalt iron nickel arsenide: (Co,Fe,Ni)As2. It crystallizes in the cubic system with the same hemihedral symmetry as pyrite; crystals have usually the form of cubes or cubo-octahedra, but are imperfectly developed and of somewhat rare occurrence. More often the mineral is found as compact or granular masses. The color is tin-white to steel-grey, with a metallic luster; the streak is greyish black. Hardness is 5.5 and the specific gravity is 6.5. The cobalt is partly replaced by iron and nickel, and as the latter increases in amount there is a passage to the isomorphous species chloanthite (NiAs2).

Smaltite occurs in veins with ores of cobalt, nickel, copper and silver. The best known localities are Cobalt, Ontario and Schneeberg in Saxony, Germany. The name smaltite was given by F. S. Beudant in 1832 because the mineral was used in the preparation of smalt for producing a blue color in porcelain and glass.

External links

* [http://www.mindat.org/min-3685.html Mindat locality data]

References

*1911


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Look at other dictionaries:

  • smaltite — [ smaltit ] n. f. • 1845; de smalt ♦ Minér. Arséniure naturel de cobalt. ● smaltite nom féminin (de smalt) Arséniure de cobalt, de formule CoAs2, cubique. smaltite [smaltit] n. f. ÉTYM. 1845; de smalt …   Encyclopédie Universelle

  • smaltite — [smôl′tīt΄] n. [ SMALT + ITE1] a white to gray, natural, isometric, cobalt nickel arsenide, (Co,Ni) As3 x …   English World dictionary

  • Smaltite — La smaltite est une variété de skutterudite de formule idéale (Co,Fe,Ni)As2. Sommaire 1 Galerie 2 Historique de la description et appellations 2.1 Inventeur et étymologie 2.2 …   Wikipédia en Français

  • Smaltite — Smaltine Smalt ine, Smaltite Smalt ite, n. [See {Smalt}.] (Min.) A tin white or gray mineral of metallic luster. It is an arsenide of cobalt, nickel, and iron. Called also {speiskobalt}. [1913 Webster] …   The Collaborative International Dictionary of English

  • smaltite — /smawl tuyt/, n. a mineral, originally thought to have been a diarsenide of cobalt, CoAs2, but which is actually a skutterudite rich in cobalt. Also, smaltine /smawl tin, teen/. [1865 70; SMALT + ITE1] * * *       a cobalt rich, arsenic poor… …   Universalium

  • smaltite — noun A variety of skutterudite with the chemical formula (Co,Fe,Ni)As, crystallizing in the cubic system …   Wiktionary

  • smaltite — smal·tì·te s.f. TS mineral. minerale raro di colore bianco e lucentezza metallica, costituito da arseniuro di cobalto, ferro e nichelio, che cristallizza nel sistema cubico ed è stato rinvenuto in Norvegia {{line}} {{/line}} DATA: 1929 …   Dizionario italiano

  • smaltite — smalt·ite …   English syllables

  • smaltite — /ˈsmɔltaɪt/ (say smawltuyt) noun a mineral diarsenide of cobalt which often also contains a diarsenide of nickel. {smalt + ite1} …  

  • smaltite — noun a grey mineral consisting of cobalt arsenide and nickel; an important source of cobalt and nickel • Hypernyms: ↑mineral • Substance Meronyms: ↑cobalt, ↑Co, ↑atomic number 27, ↑nickel, ↑Ni, ↑atomic number 28 …   Useful english dictionary

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