O, a New Mineral of the Titanite Group from the Piława Górna Pegmatite, the Góry Sowie Block, Southwestern Poland
Mineralogical Magazine, June 2017, Vol. 81(3), pp. 591–610 Żabińskiite, ideally Ca(Al0.5Ta 0.5)(SiO4)O, a new mineral of the titanite group from the Piława Górna pegmatite, the Góry Sowie Block, southwestern Poland 1,* 2 3 3 4 ADAM PIECZKA ,FRANK C. HAWTHORNE ,CHI MA ,GEORGE R. ROSSMAN ,ELIGIUSZ SZEŁĘG , 5 5 6 6 7 ADAM SZUSZKIEWICZ ,KRZYSZTOF TURNIAK ,KRZYSZTOF NEJBERT ,SŁAWOMIR S. ILNICKI ,PHILIPPE BUFFAT AND 7 BOGDAN RUTKOWSKI 1 AGH University of Science and Technology, Department of Mineralogy, Petrography and Geochemistry, 30-059 Kraków, Mickiewicza 30, Poland 2 Department of Geological Sciences, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada 3 Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, 91125-2500, California, USA 4 University of Silesia, Faculty of Earth Sciences, Department of Geochemistry, Mineralogy and Petrography, 41-200 Sosnowiec, Bedzin̨ ská 60, Poland 5 University of Wrocław, Institute of Geological Sciences, 50-204 Wrocław, M. Borna 9, Poland 6 University of Warsaw, Faculty of Geology, Institute of Geochemistry, Mineralogy and Petrology, 02-089 Warszawa, Żwirki and Wigury 93, Poland 7 AGH University of Science and Technology, International Centre of Electron Microscopy for Materials Science, Department of Physical and Powder Metallurgy, 30-059 Kraków, Mickiewicza 30, Poland [Received 7 January 2016; Accepted 21 April 2016; Associate Editor: Ed Grew] ABSTRACT Ż ́ ł abinskiite, ideally Ca(Al0.5Ta0.5)(SiO4)O, was found in a Variscan granitic pegmatite at Pi awa Górna, Lower Silesia, SW Poland. The mineral occurs along with (Al,Ta,Nb)- and (Al,F)-bearing titanites, a pyrochlore-supergroup mineral and a K-mica in compositionally inhomogeneous aggregates, ∼120 μm× 70 μm in size, in a fractured crystal of zircon intergrown with polycrase-(Y) and euxenite-(Y).
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