Hyalite, Limberg bei Sasbach, Kaiserstuhl, Baden (Germany) 
Hyalite is a common species at several locations in the Kaiserstuhl. At Limberg it forms clear hemispheres and crusts of a few mm  on the Calcite and Aragonite covered fissures of  the Limburgite. Argagonite- crystals are sometimes covered with a Hyalite layer.   Most Hyalite at Limberg has a intensive green fluorescense in SW UV-Light (see below) due to a Uranium content. (Wimmenauer 1959). 
Limberg

Faujasite

Phillipsite

Chabazite

Offretite

Hyalite

Dolomite

Calcite

Aragonite

Montmorillonite

Paragenesis

Literature
Hyalite
Home Hyalite from Quarrry I, Limberg near Sasbach, Kaiserstuhl. Field of view about 5 mm,
part of the specimen below.
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Faujasit_Druse

Hyalit

Hyalite, fluorescense under short wave UV-light.
Same specimen as in right picture.
5x6 cm specimen with crusts of Calcite and Aragonite with Hyalite from Quarry I.  Collected prior to 1969.

The Limberg at Mindat.org The Limberg as a Geotope  with a map The Limberg for tourists

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© Volker Betz (2010)  All rights reserved.