| Locality type: | Pegmatite |
| Classification |
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| Species: | Montmorillonite |
| Formula: | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Comments: | A green claylike mineral, described by Brøgger (1890) as "Steinmark", probably kaolinite? or montmorillonite pseudomorph after nepheline, was found by him and H. Reusch during their visit to the thorite TL in 1874. |
| Confirmation |
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| Validity: | Unconfirmed/Questioned |
| Data |
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| Mineral Data: | Click here to view Montmorillonite data |
| Locality Data: | Click here to view The Thorite Hole, Løvøya, Porsgrunn, Telemark, Norway |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1015197 |
| Long-form Identifier: | 1:3:1015197:8 |
| GUID (UUID V4): | 9ba3827b-00cb-4cc0-ac0c-4210bfbb5607 |
| Nearest other occurrences of Montmorillonite |
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| 5.3km (3.3 miles) | ⓘTorbjørnsås Quarry, Auenlandet, Porsgrunn, Telemark, Norway |
| 5.5km (3.4 miles) | ⓘSagåsen Quarry, Sagåsen, Auenlandet, Porsgrunn, Telemark, Norway |
| 6.5km (4.0 miles) | ⓘParadisbukta, Store Arøya (Arøy), Larvik, Vestfold, Norway |
| 6.9km (4.3 miles) | ⓘJohs Nilsens Quarry, Tvedalen, Larvik, Vestfold, Norway |
| 7.2km (4.5 miles) | ⓘA/S Granit Quarry, Tuften, Tvedalen, Larvik, Vestfold, Norway |
| 7.3km (4.5 miles) | ⓘVevja 2 Quarry, Tvedalen, Larvik, Vestfold, Norway |
| 9.0km (5.6 miles) | ⓘØstskogen Quarry, Tvedalen, Larvik, Vestfold, Norway |
| 9.1km (5.7 miles) | ⓘUtklev Quarry, Tvedalen, Larvik, Vestfold, Norway |
| 10.6km (6.6 miles) | ⓘDragehullet, Torsberg, Flakvarp, Skien, Telemark, Norway |
| 12.1km (7.5 miles) | ⓘMelau 2 Quarry, Brunlanes, Larvik, Vestfold, Norway |
| References |
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