| Locality type: | Open-Cast Mine |
| Classification |
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| Species: | Montmorillonite |
| Formula: | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Phillipsite Subgroup | ⓘ2 photos of Montmorillonite associated with Phillipsite Subgroup at this locality. |
| Offretite | ⓘ1 photo of Montmorillonite associated with Offretite at this locality. |
| Chabazite | ⓘ1 photo of Montmorillonite associated with Chabazite at this locality. |
| Data |
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| Mineral Data: | Click here to view Montmorillonite data |
| Locality Data: | Click here to view Höwenegg Quarry (Hewenegg Quarry), Immendingen, Tuttlingen, Freiburg Region, Baden-Württemberg, Germany |
| Photo Gallery | View Gallery (4 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 174102 |
| Long-form Identifier: | 1:3:174102:5 |
| GUID (UUID V4): | baf0efc7-39d7-48e6-ba0e-1b439390632b |
| Nearest other occurrences of Montmorillonite |
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| 42.0km (26.1 miles) | ⓘAttikon, Wiesendangen, Winterthur, Zürich, Switzerland |
| 42.5km (26.4 miles) | ⓘIrchel, Zürich, Switzerland |
| 64.4km (40.0 miles) | ⓘClara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany |
| 73.1km (45.4 miles) | ⓘWildsbach Mine, Hof, Münstertal, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany |
| 74.5km (46.3 miles) | ⓘMichael Mine, Weiler, Seelbach, Seelbach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany |
| 81.2km (50.5 miles) | ⓘRiesenwald quarry, Hinterohlsbach, Ohlsbach, Gengenbach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany |
| 88.6km (55.0 miles) | ⓘLimberg Quarries, Sasbach am Kaiserstuhl, Emmendingen, Freiburg Region, Baden-Württemberg, Germany |
| 88.6km (55.0 miles) | ⓘHumberg quarries, Burkheim, Vogtsburg im Kaiserstuhl, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany |
| References |
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Höwenegg Quarry, Immendingen, Tuttlingen, Freiburg Region, Baden-Württemberg, Germany