• Thumbnail for Cordierite
    Cordierite (mineralogy) or iolite (gemology) is a magnesium iron aluminium cyclosilicate. Iron is almost always present, and a solid solution exists between...
    10 KB (797 words) - 14:59, 25 March 2024
  • Thumbnail for Cordierites
    Cordierites is a genus of fungi in the family Cordieritidaceae. The genus name of Cordierites is in honour of François Simon Cordier (1797-1874), a French...
    2 KB (168 words) - 01:00, 2 March 2024
  • Thumbnail for Diesel particulate filter
    common filter is made of cordierite (a ceramic material that is also used as catalytic converter supports (cores)). Cordierite filters provide excellent...
    34 KB (4,143 words) - 01:15, 21 May 2024
  • Thumbnail for Mineral
    varieties include the gemstones emerald (green) and aquamarine (bluish). Cordierite is structurally similar to beryl, and is a common metamorphic mineral...
    110 KB (13,012 words) - 21:01, 19 May 2024
  • Combeite Conichalcite Connellite Cooperite Copiapite Copper Corderoite Cordierite Corkite Cornubite Cornwallite Corundum Cotunnite Covellite Coyoteite Creedite...
    41 KB (2,732 words) - 19:30, 28 May 2024
  • Thumbnail for Pleochroism
    blue-yellow / blue-colorless Benitoite (strong): colorless / dark blue Cordierite (aka Iolite) (orthorhombic; very strong): pale yellow / violet / pale...
    9 KB (1,028 words) - 23:38, 20 May 2024
  • Thumbnail for Catalytic converter
    required. The substrate is structured to produce a large surface area. The cordierite ceramic substrate used in most catalytic converters was invented by Rodney...
    55 KB (6,629 words) - 23:00, 29 May 2024
  • abundance of microscopic inclusions, with examples including opal and cordierite, jadeite. Many minerals with a greasy lustre also feel greasy to the touch...
    12 KB (1,158 words) - 23:18, 14 January 2024
  • Thumbnail for Hornfels
    the unaided eye, there are often larger crystals (porphyroblasts) of cordierite, garnet or andalusite scattered through the fine matrix, and these may...
    17 KB (2,161 words) - 07:56, 10 December 2023
  • Thumbnail for Silicate mineral
    Pezzottaite – Cs(Be2Li)Al2Si6O18 Osumilite – (K,Na)(Fe,Mg)2(Al,Fe)3(Si,Al)12O30 Cordierite – (Mg,Fe)2Al4Si5O18 Sekaninaite – (Fe+2,Mg)2Al4Si5O18 9-member single...
    20 KB (1,897 words) - 18:13, 5 February 2024
  • Thumbnail for Schist
    distinctive minerals, such as garnet, staurolite, kyanite, sillimanite, or cordierite. Because schists are a very large class of metamorphic rock, geologists...
    16 KB (1,790 words) - 14:35, 3 January 2024
  • Thumbnail for Sekaninaite
    essentially anhydrous (Grapes et al., 2010). The atomic structures of cordierites are interpreted as a continuous series of structures that vary based...
    10 KB (1,206 words) - 17:36, 19 January 2024
  • Thumbnail for Saggar
    smoke, gases and kiln debris: Modern saggars are made of alumina ceramic, cordierite ceramic, mullite ceramic silicon carbide and in special cases from zirconia...
    9 KB (1,172 words) - 09:42, 7 January 2024
  • Corderoite Cde Carbobystrite Cbys Chalcothallite Ccth Chukhrovite-(Nd) Chk-Nd Cordierite Crd Carbocernaite Cbc Challacolloite Chc Chukhrovite-(Y) Chk-Y Cordylite-(Ce)...
    180 KB (401 words) - 19:36, 31 March 2024
  • Clinochlore Clinohumite Clinozoisite Clintonite Cobaltite Colemanite Cordierite Iolite (var.) Cornwallite Corundum Ruby (var.) Sapphire (var.) Padparadscha...
    13 KB (866 words) - 05:32, 11 March 2024
  • Thumbnail for Tanzanite
    ruby deposits in the Tsavo area of Kenya, eliminated dumortierite and cordierite as possibilities, and sent samples to his father, Hyman Saul, vice president...
    25 KB (2,632 words) - 19:39, 2 May 2024
  • Thumbnail for Sillimanite
    granulite. It occurs with andalusite, kyanite, potassium feldspar, almandine, cordierite, biotite and quartz in schist, gneiss, hornfels and also rarely in pegmatites...
    6 KB (471 words) - 19:52, 9 May 2024
  • Thumbnail for Metamorphic facies
    plagioclase + garnet ± orthopyroxene (higher pressure) In metapelites: garnet + cordierite + sillimanite + K-feldspar + quartz ± biotite sapphirine + orthopyroxene...
    13 KB (1,402 words) - 19:59, 8 February 2024
  • Thumbnail for Sunstone (medieval)
    Ramskou posited that the "sunstone" could have been one of the minerals (cordierite or Iceland spar) that polarize light and by which the azimuth of the sun...
    19 KB (2,034 words) - 14:46, 2 May 2024
  • Thumbnail for Dispersion (optics)
    Kunzite 0.017 0.010 Spodumene 0.017 0.010 Tourmaline 0.017 0.009–0.011 Cordierite 0.017 0.009 Danburite 0.017 0.009 Herderite 0.017 0.008–0.009 Rubellite...
    60 KB (8,469 words) - 16:40, 23 April 2024
  • Thumbnail for Anthophyllite
    rimming relict orthopyroxenes and olivine, and as an accessory mineral in cordierite-bearing gneisses and schists. Anthophyllite also occurs as a retrograde...
    7 KB (578 words) - 10:56, 2 September 2023
  • Thumbnail for Fruchtschiefer
    metamorphic rock) and temperatures of ca. 500 °C. At these temperatures cordierite grows to the size of grains of corn, which is where its name comes from;...
    3 KB (325 words) - 13:17, 28 October 2022
  • Thumbnail for List of fungi by conservation status
    Data Poor, Stable, Threatened Overseas, One Location Colpoma nothofagi Cordierites acanthophora - One Location Dichomitus newhookii Ganoderma sp. “Awaroa”...
    52 KB (708 words) - 03:54, 13 February 2024
  • Thumbnail for History of the compass
    compass to locate true north. On cloudy days, the Vikings may have used cordierite or some other birefringent crystal to determine the sun's direction and...
    56 KB (7,310 words) - 16:08, 30 May 2024
  • 65±5 162±12 Macor machineable glass-ceramic 66.9 2.52 26.55 10.53 8.14 Cordierite 70 2.6 26.9 10.4 3.98 Glass 70±20 2.6±0.2 28±10 11.2±4.8 4.4±2.1 Tooth...
    60 KB (1,843 words) - 09:59, 25 May 2024
  • Thumbnail for Cordieritidaceae
    E.A. Catches. (2019) – 1 sp. Austrocenangium Gamundí (1997) – 2 spp. Cordierites Mont. (1840) – 6 spp. Diplocarpa Massee (1895) – 1 sp. Diplolaeviopsis...
    10 KB (614 words) - 20:13, 14 April 2021
  • Thumbnail for Metal foam
    automotive exhaust gas. Compared to traditional catalytic converters that use cordierite ceramic as substrate, metal foam substrate offers better heat transfer...
    45 KB (5,293 words) - 20:35, 21 March 2024
  • Thumbnail for Thin section
    in crossed-polarized light and cleavage in plane-polarized light, and cordierite, although it can be distinguished by twinning or inclusions in the grain...
    10 KB (1,047 words) - 00:13, 10 January 2024
  • Thumbnail for Migmatite
    mainly composed of quartz and feldspar. The melanosome is composed of cordierite, hornblende and biotite and forms the wall zones of the neosome. In 1795...
    24 KB (2,891 words) - 23:12, 10 November 2023
  • Thumbnail for Victor Goldschmidt
    associations occurred. For example, andalusite could be associated with cordierite but never with hypersthene.: 13–14  From his data on the hornfels, Goldschmidt...
    27 KB (2,527 words) - 23:45, 23 April 2024