| Locality type: | Mine |
| Classification |
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| Species: | Muscovite var: Illite |
| Formula: | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| Age information |
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| Maximum recorded age: | 145 ± 5 Ma |
| Minimum recorded age: | 145 ± 5 Ma |
| Sample ages: | | Recorded age | Geologic Time | Sample | Dating method |
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| 1 | 145 ± 5 Ma | Late Jurassic | - | K-Ar |
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| Sample references: | |
| Confirmation |
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|
| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Illite data |
| Locality Data: | Click here to view Käfersteige Mine, Würm, Pforzheim, Karlsruhe Region, Baden-Württemberg, Germany |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 6430 |
| Long-form Identifier: | 1:3:6430:9 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Illite |
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|
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| 17.8km (11.1 miles) | ⓘZaisersweiher quarry, Maulbronn, Enzkreis, Karlsruhe Region, Baden-Württemberg, Germany |
| 64.9km (40.3 miles) | ⓘJohann Mine, Burgfelsen, Wittichen, Schenkenzell, Rottweil, Freiburg Region, Baden-Württemberg, Germany |
| 65.4km (40.6 miles) | ⓘClara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany |
| 71.2km (44.3 miles) | ⓘRiesenwald quarry, Hinterohlsbach, Ohlsbach, Gengenbach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany |
| 78.5km (48.8 miles) | ⓘHechtsberg quarry, Hausach, Hausach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany |
| 87.8km (54.6 miles) | ⓘKrähenloch tunnel, Nußbach, Triberg im Schwarzwald, Schwarzwald-Baar-Kreis, Freiburg Region, Baden-Württemberg, Germany |
| References |
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Meyer, M., Brockamp, O., Clauer, N., Renk, A., Zuther, M. (2000) Further evidence for a Jurassic mineralizing event in central Europe: K-Ar dating of hydrothermal alteration and fluid inclusion systematics in wall rocks of the Käfersteige fluorite vein deposit in the northern Black Forest, Germany. Mineralium Deposita, 35 (8) 754-761 doi:10.1007/s001260050277 |
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