• Thumbnail for Cummingtonite
    Cummingtonite (/ˈkʌmɪŋtənaɪt/ KUM-ing-tə-nyte) is a metamorphic amphibole with the chemical composition (Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2, magnesium...
    8 KB (581 words) - 03:36, 30 December 2024
  • Thumbnail for Amphibole
    anthophyllite, riebeckite, the cummingtonite/grunerite series, and the actinolite/tremolite series. The cummingtonite/grunerite series is often termed...
    15 KB (1,556 words) - 20:00, 12 November 2024
  • Thumbnail for Silicate mineral
    NaCa2(Si3O8)(OH) Amphibole group Anthophyllite – (Mg,Fe)7Si8O22(OH)2 Cummingtonite series Cummingtonite – Fe2Mg5Si8O22(OH)2 Grunerite – Fe7Si8O22(OH)2 Tremolite series...
    20 KB (1,897 words) - 18:21, 16 July 2024
  • Thumbnail for Tremolite
    calcite, dolomite, grossular, wollastonite, talc, diopside, forsterite, cummingtonite, riebeckite and winchite. Tremolite was first described in 1789 for...
    6 KB (382 words) - 17:32, 24 June 2024
  • Thumbnail for Grunerite
    with formula Fe7Si8O22(OH)2. It is the iron endmember of the grunerite-cummingtonite series. It forms as fibrous, columnar or massive aggregates of crystals...
    3 KB (185 words) - 18:23, 22 July 2024
  • Thumbnail for Asbestos
    brown asbestos, is a trade name for the amphiboles belonging to the cummingtonite-grunerite solid solution series, commonly from South Africa, named as...
    113 KB (11,974 words) - 01:08, 31 December 2024
  • Thumbnail for Doon Mackichan
    appeared twice on the BBC panel show QI, in series C, episode 2, ("Cummingtonite", 2005) and series E episode 11, ("Endings", 2007). From 2013 until...
    19 KB (997 words) - 14:54, 11 December 2024
  • Crossite (not approved by IMA) Cryolite Cryptomelane Cubanite Cumengeite Cummingtonite Cupalite Cuprite Cuprosklodowskite Cuprospinel Curite Cuspidine Cyanotrichite...
    43 KB (2,846 words) - 19:16, 19 December 2024
  • Thumbnail for Nuvvuagittuq Greenstone Belt
    the nickname "faux-amphibolite". The cummingtonite amphibolite displays gneissic foliation, with cummingtonite, quartz, biotite and plagioclase feldspar...
    14 KB (1,610 words) - 08:53, 2 January 2025
  • Thumbnail for Cummington, Massachusetts
    leads west, then south, 21 miles (34 km) to Huntington. The mineral cummingtonite was first found in this town and was named after it. As of the census...
    11 KB (1,309 words) - 01:36, 5 January 2025
  • Magnesiocummingtonite is the magnesium rich endmember of the cummingtonite-grunerite series of the amphibole group of minerals, with the following composition:...
    998 bytes (98 words) - 08:16, 25 November 2022
  • form is known as crocidolite or "blue asbestos", and brown asbestos, a cummingtonite-grunerite solid solution series. The United States Environmental Protection...
    2 KB (189 words) - 18:14, 26 September 2024
  • Thumbnail for Soapstone
    of chlorite and amphiboles (typically tremolite, anthophyllite, and cummingtonite, hence its obsolete name, magnesiocummingtonite), and traces of minor...
    26 KB (2,829 words) - 08:27, 28 November 2024
  • Thumbnail for Anthophyllite
    magnesium iron inosilicate hydroxide. Anthophyllite is polymorphic with cummingtonite. Some forms of anthophyllite are lamellar or fibrous and are classed...
    7 KB (578 words) - 10:56, 2 September 2023
  • Brydon Rich Hall Rich Hall 30 September 2005 (2005-09-30) 2.33 26 2 "Cummingtonite" Andy Hamilton Doon Mackichan Arthur Smith Andy Hamilton...
    135 KB (1,868 words) - 05:10, 9 January 2025
  • Thumbnail for Taconite
    Superior. The tailings contained 40% of the amphibole group mineral series cummingtonite-grunerite, which may form asbestiform particles. A small fraction of...
    12 KB (1,436 words) - 20:11, 8 June 2024
  • Magnesium iron silicate hydroxide may refer to: Anthophyllite Cummingtonite Serpentine group This disambiguation page lists articles associated with the...
    131 bytes (45 words) - 15:41, 16 June 2021
  • aromatic hydrocarbon used in the production of phenol and acetone. Cummingtonite ((Mg,Fe2+)2(Mg,Fe2+)5Si8O22(OH)2), a magnesium-iron silicate hydroxide...
    44 KB (1,916 words) - 10:37, 6 January 2025
  • Thumbnail for Metamorphic facies
    assemblages: In metabasites: hornblende + plagioclase ± epidote, garnet, cummingtonite, diopside, biotite In metapelites: muscovite + biotite + quartz + plagioclase...
    13 KB (1,402 words) - 10:33, 2 December 2024
  • Thumbnail for United States v. Reserve Mining Company
    the tailings not only polluted Lake Superior but that they contained cummingtonite-grunerite. This substance is found in asbestos, a known carcinogen....
    6 KB (749 words) - 10:55, 22 March 2024
  • Thumbnail for Tschermakite
    along with its ternary solid solution series members tremolite and cummingtonite so that the thermodynamic properties of its assemblage can be applied...
    12 KB (1,404 words) - 17:07, 11 April 2024
  • Calcio-olivine Caol Čejkaite Čej Chlorapatite Clap Cobaltaustinite Caus Cummingtonite Cum Calciopetersite Cpts Celadonite Cel Chlorargyrite Cag Cobaltite...
    180 KB (418 words) - 12:01, 15 December 2024
  • magnesian bluish-green Tremolite-cummingtonite-grunerite amphiboles in greenschist facies rocks Anthophyllite-cummingtonite amphibole in weakly carbonated...
    5 KB (618 words) - 11:12, 14 March 2023
  • Thumbnail for Gedrite
    metamorphic rocks in association with garnet, cordierite, anthophyllite, cummingtonite, sapphirine, sillimanite, kyanite, quartz, staurolite and biotite. Gedrite...
    4 KB (266 words) - 01:01, 4 January 2024
  • Thumbnail for Jimthompsonite
    minerals are found intergrown with the amphiboles anthophyllite and cummingtonite in sprays up to 5 cm long. They are all colorless to pale pinkish-brown...
    6 KB (554 words) - 08:55, 9 November 2024
  • Thumbnail for Komatiite
    chlorite, tremolite, and other magnesian amphiboles (anthophyllite, cummingtonite, gedrite, etc.). For example, the typical flow facies (see below) may...
    27 KB (3,370 words) - 20:52, 8 January 2025
  • Thumbnail for Eoarchean geology
    argue that it is between 4.4 Ga and 3.8 Ga old. The 4.4-Ga-old ages for cummingtonite-amphibolites in NGB do not, by their low isotopic ratio of 142-Neodymium to...
    35 KB (4,096 words) - 03:21, 29 September 2024
  • Bonin Islands, Japan Comendite: Comende, San Pietro Island, Sardinia Cummingtonite: Cummington, Massachusetts Dunite: Dun Mountain, New Zealand Essexite:...
    9 KB (696 words) - 16:21, 28 August 2024
  • Thumbnail for Kanoite
    type locality kanoite occurs along a joint that cuts a pyroxmangite-cummingtonite metamorphic rock in a manganese ore deposit. The region has undergone...
    5 KB (525 words) - 20:35, 1 May 2024
  • p., 1893) 3.DB.20 [1,089] [1,090] [1,091] (Pb21Cu20Cl42(OH)40·6H2O) Cummingtonite [Mg-Fe-Mn-amphibole: IMA2012 s.p., 1824] 09.DE.05 [1,092] [1,093] [1...
    103 KB (6,708 words) - 17:15, 19 June 2024