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System:OrthorhombicColour:Colourless (internal); ...
Name:After P.C. Weibye, Norwegian mineralogist.

An inadequately defined material from Lille Arøya (Midtre Arøy; Øvre Arøy; Övre-Arö), Langesundsfjorden, Larvik, Vestfold, Norway.
A sample labbeled Weibeyite and collected by W.C.Brøgger in 1902 was found by Sverdrup et al. (1959) to be bastnäsite.
Some material may also be ancylite.

Classification of Weibyeite

IMA status:Discredited 1964
Explanation of status:Discredited in Am. Mineral 49 (1964) 1154.
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Physical Properties of Weibyeite

Colour:Colourless (internal); ochre-yellow (surfaces)

Crystallography of Weibyeite

Crystal System:Orthorhombic
Morphology:Crystals tiny.

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 Weibyeite

Reference List:

- +
Brögger (1890) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 16: 650.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 293.

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  • Localities for Weibyeite

    (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.
    • Vestfold
      • Larvik
        • Langesundsfjorden
          • Lille Arøya (Midtre Arøy; Øvre Arøy; Övre-Arö)
    Brøgger, W.C. (1890): Die Mineralien der Syenitpegmatitgänge der südnorwegischen Augit-und Nephelinsyenite. Zeitschrift für Kristallographie und Mineralogie 16. 663 pp (p. 650-658); Sverdrup, T. L.,Bryn, K. Ø. & Sæbø, P.Chr.(1959): Contributions to the mineralogy of Norway. No. 2. Bastnäsite, a new mineral for Norway. Geologisk Tidsskrift 39, 237-247; Sæbø, P.C.(1963): Contributions to the mineralogy of Norway. No. 20. The identity of Weibyeite. Geologisk Tidsskrift 439, 441-447
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