| Classification |
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| Species: | 'Heulandite Subgroup' (not an IMA approved species) |
| Formula: | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Heulandite Subgroup data |
| Locality Data: | Click here to view Perlenhardt, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 406709 |
| Long-form Identifier: | 1:3:406709:2 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Heulandite Subgroup |
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| 1.3km (0.8 miles) | ⓘLohrberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany |
| 3.5km (2.2 miles) | ⓘStenzelberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany |
| 3.7km (2.3 miles) | ⓘWolkenburg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany |
| 57.3km (35.6 miles) | ⓘArensberg, Zilsdorf, Walsdorf, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany |
| 74.9km (46.6 miles) | ⓘDiabase quarries, Herborn, Lahn-Dill-Kreis, Giessen Region, Hesse, Germany |
| 85.9km (53.4 miles) | ⓘDiabase quarry, Hartenrod, Bad Endbach, Marburg-Biedenkopf, Giessen Region, Hesse, Germany |
| 87.9km (54.6 miles) | ⓘObereisenhausen diabase quarry, Steffenberg, Marburg-Biedenkopf, Giessen Region, Hesse, Germany |
| References |
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