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Cryptoperthite

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A variety of Perthite

A variety of perthite with lamella of submicroscopic thickness.

Classification of Cryptoperthite

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Other Names for Cryptoperthite

Other Languages:
German:Cryptoperthit
Spanish:Cryptoperthita

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.

References for Cryptoperthite

Reference List:

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Brown, W.L. and Willaime, C. (1974) An explanation of exsolution orientations and residual strain in cryptoperthites. In W.S. MacKenzie and J. Zussman, Eds., The Feldspars: 440-459. Manchester University Press, U.K.

Gandais, M., Guillemin, C., and Willaime, C. (1974) Study of boundaries in cryptoperthites. In Electron Microscopy 1974, p. 508-509. Eight International Congress on Electron Microscpy. The Australian Academy of Science, Canberra.

Yund, R.A. and Davidson, P. (1978) Kinetics of lamellar coarsening in cryptoperthites. American Mineralogist: 63: 470-477.

Yund, R.A. and Chapple, W.M. (1980) Thermal histories of two lava flows estimated from cryptoperthite lamellar spacings. American Mineralogist: 65: 438-443.

Brown, W.L., Becker, S.M., and Parsons, I. (1983) Cryptoperthites and cooling rate in a layered syenite pluton: a chemical and TEM study. Contributions to Mineralogy and Petrology: 82: 13-25.

Brown, W.L. and Parsons, I. (1984a) Exsolution and coarsening mechanisms and kinetics in an ordered cryptoperthite series. Contributions to Mineralogy and Petrology: 86: 3-18.

Brown, W.L. and Parsons, I. (1984b) The nature of potassum feldspar, exsolution microtextures and development of dislocations as a function of composition in perthitic alkali feldspars. Contributions to Mineralogy and Petrology: 86: 335-341.

Snow, E. and Yund, R.A. (1988) Origin of cryptoperthites in the Bishop Tuff and their bearing in its thermal history. Journal of Geophysical Research: 93: 8975-8984.

Internet Links for Cryptoperthite

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  • Localities for Cryptoperthite

    The 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.
    (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.
    Norway
     
    • Oppland
      • Vågå
        • Tesse
    Wilke, H.-J. (1976): Mineral-Fundstellen Band 4: Skandinavien. Chr. Weise Verlag, München, 370 pp. (p.123)
    • Vestfold
      • Larvik
        • Hedrum
          • Lågendalen
    Nordrum, F.S. (2001): Noen funn av mineraler i Norge 2000-2001. STEIN 28 (2): 13- 19
        • Tjølling
          • Håkestad
    Nordrum, F.S. (2001): Noen funn av mineraler i Norge 2000-2001. STEIN 28 (2): 13- 19
          • Klåstad
    Oftedal, I. (1962): Contribution to the geochemistry of nephelinesyenitic pegmatite in the Langesundsfjord area. Norsk Geologisk Tidsskrift 42, 167-177
          • Ula
    Oftedahl, C. (1948): Studies on the igneous rock complex of the Oslo region. IX. The Feldspars. Skrifter utgitt av Det Norske Videnskaps-. Akademi i Oslo, I. Mat.-Naturv. Klasse 1948, no.3. 71s.
      • Sandefjord
        • Lahellefjorden
    Knut Edvard Larsen observation in field september 2012
        • Østerøya
    Berge, S. A. & Andersen, F. (2002): Mineralforekomster i Sandefjordområdet. Norsk Bergverksmuseums Skrift. 20, 50-59
    USA
     
    • New Mexico
      • Colfax Co.
    Minerals of New Mexico 3rd ed.
      • Sierra Co.
        • Hillsboro District
    Minerals of New Mexico 3rd ed.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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