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Beckelite

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Friedrich Becke
Formula:
(Ce,Ca)5(SiO4)3(OH,F)
Lustre:
Waxy
Hardness:
5
Name:
Name given in 1904 by J. Morozewicz of yellow-brown crystals found in mariupolite from the Sea of Azov, Ukraine. Named in honour of the Austrian mineralogist and petrograph Friedrich Becke (1855-1931).
Synonym:
A synonym of Britholite-(Ce)
A discredited member of the Apatite Group. Synonym of Britholite-(Ce).
Originally described from Mariupol' (Oktyabr'skii) Massif, Azov Sea Region, Donetsk Oblast', Ukraine. Described as "wax-yellow, octahedral or rhombic dodecahedral crystals resembling pyrochlore in appearance and physical characters." Embrey and Fuller (1980).


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References for BeckeliteHide

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Morozewicz, J. (1904) Akademy Krakow, Series A, 94: 216.
Morozewicz, J. (1904) Uber Beckelit ein Cero-Lantano-Didymo-Silikat vom Calcium. Bull. Inter. Acad. Sci. Cracovie. 1904: 485-492.
Morozewicz, J. (1905) Min. Petr. Mitt. (Tschermak), 24: 120.
Gay, P. (1957) An X-Ray Investigation of some Rare-Earth Silicates: Cerite, Lessingite, Beckelite, Britholite, and Stillwellite. Mineralogical Magazine: 31: 237: 455-468.
Mineralogicheskiy Zhurnal (1987) 9(1): 78.
Jambor, J.L. and Puziewics, J. (1990) New mineral names. American Mineralogist: 75: 431-438.
Burke, E.A.J. (2006) A mass discreditation of GQN minerals. The Canadian Mineralogist: 44(6): 1557-1560.

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