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A variety of Chrysoberyl

An opalescent variety of Chrysoberyl. Exhibits a bluish (or yellowish according to other sources) chatoyancy which is caused by microscopic tube-like cavities or needle-like inclusions of rutile in an orientation parallel to the c-axis.

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Classification of Cymophane

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Other Names for Cymophane

Cat's Eye ChrysoberylCymophanite
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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.

References for Cymophane

Reference List:

- +
Haüy (1798), Journa ines: 4: 5.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 718.

Internet Links for Cymophane

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  • Localities for Cymophane

    (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.
    Democratic Republic of Congo (Zaïre)
    • Kasaï (Kasaï-Occidental)
    Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
    • Antananarivo Province
      • Analamanga Region
        • Ankazobe Pegmatite Field
          • Ankazobe District
    Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
    • Fianarantsoa Province
      • Matsiatra Region
        • Ampandramaika-Malakialina Pegmatite Field
          • Ikalamavony District
            • Fitampito Commune
    Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871; Behier, J. (1960): Contribution á la Minéralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, p. 27
    • Mahajanga Province (Majunga)
      • Betsiboka Region
        • Maevatanana District
    Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
    • Tuléar Province (Toliara)
      • Menabe Region
        • Miandrivazo District
    Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Geologique A. 1871
    Sri Lanka
    • Sabaragamuwa Province
      • Ratnapura District
    Josep Sanchez specimens (INTAN, Barcelona)
        • Ratnapura
    Ceylon Aluvial Mine, (Book, Co. 2002)
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. 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 thousands 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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