1992•European Journal of MineralogyRequires access

Babingtonite, Y-Al-rich titanite, and zoned epidote from the Strzegom pegmatites, Poland

Janusz Janeczek, Michae Sachanbinsk

Abstract

Babingtonite, a new mineral to Poland, occurs in miarolitic pegmatites of the Strzegom-Sobotka granitic massif together with microcline-perthite, epidote, titanite, bavenite, stilbite, and calcite. Babingtonite, Ca 3.96 (Fe 3+ 1.76 Fe 2+ 1.41 Mg 0.42 Mn 0.32 Al 0.04 ) [Si1 0.09 O 29 ], shows patchy zoning of Mg and Mn substituting for Fe 2+ . Unit-cell parameters are a 7.470(4) A, b 12.463(6) A, c 6.692(3) A, α 85.73(5)°, β 93.66(5)°, γ 112.33(4)°. D=3.35 g cm −3 . Zoned titanite associated with babingtonite is enriched in both Y and Al

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Key concepts: Titanite, Epidote, Pegmatite, Geology, Microcline, Geochemistry, Mineral, Massif