• Thumbnail for Pyrite
    The mineral pyrite (/ˈpaɪraɪt/ PY-ryte), or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula FeS2 (iron (II) disulfide)...
    43 KB (4,500 words) - 09:46, 15 October 2024
  • The pyrite group of minerals is a set of cubic crystal system minerals with diploidal structure. Each metallic element is bonded to six "dumbbell" pairs...
    2 KB (161 words) - 02:47, 29 May 2024
  • Thumbnail for Chalcopyrite
    Chalcopyrite (redirect from Copper pyrite)
    historically referred to as "yellow copper". Chalcopyrite is often confused with pyrite and gold since all three of these minerals have a yellowish color and a...
    23 KB (2,301 words) - 18:42, 29 April 2024
  • Thumbnail for Pyrrhotite
    Pyrrhotite (redirect from Magnetic pyrite)
    known as troilite. Pyrrhotite is also called magnetic pyrite, because the color is similar to pyrite and it is weakly magnetic. The magnetism decreases as...
    26 KB (2,402 words) - 14:09, 29 July 2024
  • pentagonal faces are not regular: The pyritohedron, a common crystal form in pyrite, has pyritohedral symmetry, while the tetartoid has tetrahedral symmetry...
    28 KB (2,048 words) - 19:07, 17 October 2024
  • Thumbnail for Marcasite
    "white iron pyrite", is iron sulfide (FeS2) with orthorhombic crystal structure. It is physically and crystallographically distinct from pyrite, which is...
    12 KB (1,126 words) - 13:46, 20 September 2024
  • Thumbnail for Lapis lazuli
    lāžward, lapis lazuli is a rock composed primarily of the minerals lazurite, pyrite and calcite. As early as the 7th millennium BC, lapis lazuli was mined in...
    28 KB (2,951 words) - 09:16, 10 November 2024
  • Thumbnail for Arsenopyrite
    Arsenopyrite is generally an acid-consuming sulfide mineral, unlike iron pyrite which can lead to acid mine drainage.[citation needed] The crystal habit...
    6 KB (479 words) - 13:09, 9 August 2024
  • Thumbnail for Marcasite jewellery
    using cut and polished pieces of pyrite (fool's gold) as gemstone, and not, as the name suggests, from marcasite. Both pyrite and marcasite are chemically...
    3 KB (320 words) - 00:58, 19 March 2024
  • Thumbnail for Northland Pyrite Mine
    The Northland Pyrite Mine, also known as James Lake Mine, Rib Lake Mine, Harris Mine or simply Northland Mine, is an abandoned underground mine in Northeastern...
    5 KB (546 words) - 16:57, 6 June 2017