/ahr'seuh noh puy"ruyt, ahr sen'euh-/, n.
a common mineral, iron arsenic sulfide, FeAsS, occurring in silver-white to steel-gray crystals or masses: an ore of arsenic. Also called mispickel.
[1880-85; ARSENO- + PYRITE]

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also called  Mispickel,  

      an iron sulfoarsenide mineral (FeAsS), the most common ore of arsenic. It is most commonly found in ore veins that were formed at high temperatures, as at Mapimí, Mex.; Butte, Mont.; and Tunaberg, Swed. Arsenopyrite forms monoclinic or triclinic crystals with an orthorhombic shape; the physical appearance of these crystals is seldom an accurate method for determining their symmetry. A series of minerals in which cobalt partially replaces iron is called cobaltian arsenopyrites; those in which the Co:Fe ratio lies between 1:2 and 6:1 are called glaucodot (see also cobaltite). Weathering alters these sulfides to arsenates: arsenopyrite to scorodite, and glaucodot to erythrite. For detailed physical properties, see sulfide mineral (table).

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Universalium. 2010.

Look at other dictionaries:

  • Arsénopyrite — Arsenopyrite[1] Catégorie II : sulfures et sulfosels[2] …   Wikipédia en Français

  • Arsenopyrite — Arsenopyrite, Panasqueira Mine, Portugal General Category Sulfide mineral …   Wikipedia

  • Arsenopyrite — Arsénopyrite Arsenopyrite[1] Catégorie II : sulfures et sulfosels …   Wikipédia en Français

  • arsénopyrite — ● arsénopyrite nom féminin Synonyme de mispickel. ● arsénopyrite (synonymes) nom féminin Synonymes : mispickel …   Encyclopédie Universelle

  • Arsenopyrite — Ar sen*o*pyr ite, n. [Arsenic + pyrite.] (Min.) A mineral of a tin white color and metallic luster, containing arsenic, sulphur, and iron; also called {arsenical pyrites} and {mispickel}. [1913 Webster] …   The Collaborative International Dictionary of English

  • arsenopyrite — [är΄sə nō΄pī′rīt΄] n. a silvery white, hard, brittle, monoclinic mineral, FeAsS; iron arsenic sulfide: it is an ore of arsenic found as a twinned crystal in veins of metamorphic rock …   English World dictionary

  • arsenopyrite — arsenopiritas statusas T sritis chemija apibrėžtis Pirito grupės mineralas. formulė FeAsS atitikmenys: angl. arsenopyrite; mispickel rus. арсенопирит; миспикель ryšiai: sinonimas – mispikelis …   Chemijos terminų aiškinamasis žodynas

  • arsenopyrite — noun Date: 1868 a silver white mineral consisting of a combined sulfide and arsenide of iron that occurs in prismatic orthorhombic crystals or in masses or grains and that is the principal source of arsenic …   New Collegiate Dictionary

  • arsenopyrite — noun A silvery grey ore of arsenic, a mixed arsenide and sulfide of iron, FeAsS. Syn: mispickel …   Wiktionary

  • arsenopyrite — [ˌα:s(ə)nəʊ pʌɪrʌɪt] noun a silvery grey mineral consisting of an arsenide and sulphide of iron and cobalt …   English new terms dictionary

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