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Pseudocubic Quartz

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Formula:
SiO2
A variety of Quartz

Crystals with a (pseudo)cubic appearance that are dominated by a single rhombohedral form (usually r, { 1 0 -1 1 }). Since the angles of the rhombohedron differ only very little from that of a perfect cube (85.2° and 94.8°, respectively, instead of 90°), the crystals look like a slightly skewed cube.




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Chemical Properties of Pseudocubic QuartzHide

Formula:
SiO2

Synonyms of Pseudocubic QuartzHide

Other Language Names for Pseudocubic QuartzHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Amethyst7 photos of Pseudocubic Quartz associated with Amethyst on mindat.org.
Quartz2 photos of Pseudocubic Quartz associated with Quartz on mindat.org.
Cookeite2 photos of Pseudocubic Quartz associated with Cookeite on mindat.org.
Rhodizite1 photo of Pseudocubic Quartz associated with Rhodizite on mindat.org.
Columbite-(Mn)1 photo of Pseudocubic Quartz associated with Columbite-(Mn) on mindat.org.
Tourmaline1 photo of Pseudocubic Quartz associated with Tourmaline on mindat.org.
Sceptre Quartz1 photo of Pseudocubic Quartz associated with Sceptre Quartz on mindat.org.
Hematite1 photo of Pseudocubic Quartz associated with Hematite on mindat.org.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Pseudocubic QuartzHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Tarr, W.A., Lonsdale, J.T. (1929) Pseudo-cubic quartz crystals from Artesia, New Mexico. American Mineralogist, 14, 50-53.

Internet Links for Pseudocubic QuartzHide

Localities for Pseudocubic QuartzHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Austria
 
  • Carinthia
    • Saualpe
      • Ladinger Spitze - Speikkogel area
R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
  • Salzburg
    • Hohe Tauern
      • Felben valley
A. Strasser: Die Minerale Salzburgs (1989)
      • Habach valley
        • Moar Alp
R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
      • Hollersbach valley
Natural History Museum Vienna collection
  • Styria
    • Koralpe
      • Deutschlandsberg
        • St Oswald
Postl, W. & Moser, B. (1987); Exel, R. (1993)
    • Schladming
      • Schladminger Tauern
        • Giglach valley
          • Giglach lakes
Taucher, J. (1999): Fe-reicher Pumpellyit-(Mg) mit Würfelquarz vom Engelkarspitze Nordhang, südöstlich Unterer Giglachsee, Schladminger Tauern, Steiermark, Österreich. Annalen - Journal of Science and Art, 1, 5-6.
  • Tyrol
    • East Tyrol
      • Virgen valley
        • Prägraten
          • Timmelbach valley
R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
France
 
  • Auvergne-Rhône-Alpes
    • Puy-de-Dôme
      • Jumeaux
        • La Chapelle-sur-Usson
François Périnet collection
  • Brittany
    • Finistère
      • Plougastel-Daoulas
Collected by Jean Guennéguès
Germany
 
  • Bavaria
    • Lower Bavaria
      • Bischofsmais
Pfaffl, F.A. (1982) Erstfund im Bayrischen Wald - Würfelquarz vom Teufelstisch. Mineralien Magazin 6(8), 456-459. S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
  • North Rhine-Westphalia
    • Sauerland
      • Warstein
        • Hirschberg
D. Pawlowski: "Mineralfundstellen im Sauerland", Weise (Munich), 1991
        • Hohe Liet
Rykart, R., Hatton, H. (1982) Rarität aus dem Sauerland. Würfelähnliche Quarzkristalle. Mineralien Magazin 6(8), 361-362. D. Pawlowski: "Mineralfundstellen im Sauerland", Weise (Munich), 1991
  • Rhineland-Palatinate
    • Palatinate
      • Winnweiler
        • Schweisweiler
Hartmut Hensel collection, Neustadt a. d. Wstr.
Italy
 
  • Tuscany
    • Livorno Province
      • Rosignano Marittimo
Giuliano Bettini Collection
Madagascar
 
  • Antananarivo Province
    • Vakinankaratra Region
      • Betafo District
        • Ambohimasina Commune
Knut Edvard Larsen collection # MM-1931
USA
 
  • Maine
    • Oxford Co.
      • Greenwood
Nestor Tamminen discovery; also Mineral News (1993) 9:2 p. 8
Mineral and/or Locality  
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