| Montmorillonite, Limberg bei Sasbach, Kaiserstuhl, Baden (Germany) | |
| Clay minerals of the Montmorillonite-group are not very common at the Limberg- Quarries. If Montmorillonite is present in a cavity, the zeolites in the same cavity form well developed crystals especially Offretite. At the Limberg, Montmorillonite forms small and striking aggregates of various colors: black, brown, yellow, orange, pink and white. Some of this aggregates are hollow and form perimorphoses after hemispheres and needles of earlier minerals. Montmorillionite is the oldest mineral in the present paragenesis and forms sometimes a geological (water-) level. Such levels have been first descibed by Schwankte (1905) from Oberwiddersheim, Germany. | |
| Limberg Faujasite Phillipsite Chabazite Offretite Hyalite Dolomite Calcite Aragonite Montmorillonite Paragenesis Literature |
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| Home | Faujasite on a irrregular Montmorillonite-aggregate. Field of view about 5 mm. |
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| Faujasite on Montmorillonite. Field of view about 2 mm. | Montmorillonite wih Offretite. Field of view about 3 m |
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| Hollow perimorphoses of Montmorillonite with Offretite/Phillipsite Aggregates. Field of view about 4 mm. | Montmorillonite aggregate. Field of view about 5 mm. |
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| Geological " water level"of Montmorillonite with a Phillipste overgrowth. Field of view about 6 mm. | Concentric layers of Montmorillonite with different colours. Field of view about 2.5 mm. |
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| Hollow hemispheres of Montmorillonite with Phillipsite. Field of view about 3 mm. | Broken hemispheres of Montmorillonite. Field of view about 5 mm. |
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| Cavity with white coating of Montmorillonite on thin needles. Field of view about 12 mm. | |
| The Limberg at Mindat.org | The Limberg as a Geotope with a map | The Limberg for tourists |