• Thumbnail for Richterite
    Richterite is a sodium calcium magnesium silicate mineral belonging to the amphibole group. If iron replaces the magnesium within the structure of the...
    3 KB (222 words) - 12:15, 14 February 2024
  • Thumbnail for Fluoro-richterite
    in 1994. Its name is derived from its fluorine content and relation to richterite. At the type locality in the Ilmen Mountains fluororichterite occurs in...
    4 KB (182 words) - 01:06, 4 January 2024
  • Smoky quartz (var.) Quartzite Realgar Rhodizite Rhodochrosite Rhodonite Richterite Riebeckite Crocidolite (var.) Rosasite Rutile Samarskite Sanidine Sapphirine...
    13 KB (866 words) - 05:32, 11 March 2024
  • Thumbnail for Lamproite
    titanium-rich aluminium-poor phlogopite; potassium- and titanium-rich richterite; low aluminium diopside; and iron-rich sanidine. A variety of rare trace...
    11 KB (1,074 words) - 04:24, 4 January 2024
  • Renierite Rheniite Rhodium Rhodochrosite Rhodonite Rhodplumsite Rhomboclase Richterite Rickardite Riebeckite Ringwoodite Roaldite Robertsite Rodalquilarite Romanèchite...
    41 KB (2,732 words) - 19:30, 28 May 2024
  • Thumbnail for Amphibole
    Fe)4Ti Si6Al2O22(OH)2 Kaersutite Sodic-calcic Na NaCa (Mg,Fe)5 Si8O22(OH)2 Richterite Na-Ca-clinonamphibole Na NaCa (Mg,Fe)4Fe3+ Si7AlO22(OH)2 Katophorite Sodic...
    15 KB (1,556 words) - 23:57, 4 March 2024
  • Thumbnail for Asbestos
    to danger by mining vermiculite contaminated with asbestos, typically richterite, winchite, actinolite or tremolite. Vermiculite contaminated with asbestos...
    108 KB (11,605 words) - 17:25, 28 May 2024
  • Ferrorhodonite Frdn Fluorokinoshitalite Flkns Fengchengite Fcg Ferro-richterite Frct Fluoro-leakeite Fllk Feodosiyite Fdy Ferrorockbridgeite Forck Fluoro-nybøite...
    180 KB (401 words) - 19:36, 31 March 2024
  • Thumbnail for Vermiculite
    in Libby, Montana, did have tremolite asbestos as well as winchite and richterite (both fibrous amphiboles)—in fact, it was formed underground through essentially...
    24 KB (2,769 words) - 09:28, 18 April 2024
  • Thumbnail for Kosmochlor
    troilite at Toluca; daubreelite, krinovite, roedderite, high albite, richterite, chromite (Canyon Diablo); and jadeite, chromite and chlorite (Burma)...
    3 KB (127 words) - 15:26, 13 February 2023