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Orbicular Jasper

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Orbicular Jasper is a name given to a highly silicified rhyolite or tuff that has quartz and feldspar crystallized into radial aggregates of needle-like crystals forming orbicular (spherical) structures.

It is often used as a decorative stone.

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Classification of Orbicular Jasper

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Other Names for Orbicular Jasper

Ocean AgateOcean JasperOrbicular AgatePoppy Jasper
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Other Information

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

Internet Links for Orbicular Jasper

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  • Rare and Unusual minerals at Mineralogical Research Company
  • Orbicular Jasper specimens for sale - minfind.com
  • Wilensky Fine Minerals
  • Buy RARE Minerals from Rocks of Africa
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  • Fabre Minerals - search for Orbicular Jasper specimens
  • Top quality minerals from Kristalle of California
  • Search for Orbicular Jasper on Well-Arranged Molecules
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  • The Arkenstone - Fine Minerals
  • Buy rare minerals from Excalibur Minerals
  • Localities for Orbicular Jasper

    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    • Mahajanga Province (Majunga)
      • Sofia Region
        • Analalava District
          • Ambolobozo
    Lieber, W. (2003): Sphärolithischer Chalcedon von Madagaskar. LAPIS 28 (9), 18-22
    • Urals Region
      • Southern Urals
        • Chelyabinsk Oblast'
          • Kizil'skii district
    Leonova L.V., Pribavkin S.V., Gulyaeva T.Ya. (2003) Concretions from Paleozoic silicites of Southern Ural, - Mineralogicheskoe Obscchestvo, Vestnik Ural'skogo Otdeleniya, â„–2, pp. 61-65 (in Russian).
    • Western-Siberian Region
    Andrey S. Gorshkov specimen from Korgon river
    • Arizona
      • Cochise Co.
        • Benson
    Van King
    • California
      • Santa Clara Co.
        • Santa Cruz Mts
          • Paradise Valley
    Melhase, John (1934), A diversity of many fine minerals available in California for collectors: Oregon Mineralogist: 2(7): 7; Mineralogist, The (1935): 3(3): 34; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 318; www.cst.cmich.edu/users/dietr1rv/jasper.htm
    • South Dakota
      • Jackson Co.
    SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
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