| Locality type: | Quarry |
| Classification |
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| Species: | Heulandite-K |
| Formula: | (K,Ca,Na)5(Si27Al9)O72 · 26H2O |
| Comments: | a calcian heulandite -K, present as a narrow zone in 2 analyzed heulandite-Ca crystals (Nordrum et al. 2003) |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Heulandite-K data |
| Locality Data: | Click here to view Valberg Quarry, Valberg, Kragerø, Telemark, Norway |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 625935 |
| Long-form Identifier: | 1:3:625935:8 |
| GUID (UUID V4): | ef46b06c-5298-44f6-81ea-e8aa9484f766 |
| Nearest other occurrences of Heulandite-K |
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| 53.8km (33.4 miles) | ⓘBuer, Vesterøya, Sandefjord, Vestfold, Norway |
| 55.0km (34.2 miles) | ⓘKamfjord Quarry, Vesterøya, Sandefjord, Vestfold, Norway |
| 59.6km (37.0 miles) | ⓘLangsæv Mine, Steinsås, Barbudalen, Arendal, Agder, Norway |
| 82.7km (51.4 miles) | ⓘBentsrud (Solumbrekka), Holmestrand, Vestfold, Norway |
| 83.0km (51.6 miles) | ⓘReggestad, Holmestrand, Vestfold, Norway |
| 84.7km (52.6 miles) | ⓘFalkenstensvingen, Falkensten, Borre, Horten, Vestfold, Norway |
| 85.3km (53.0 miles) | ⓘSjøskogen, Holmestrand, Vestfold, Norway |
| References |
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| Reference Search (possible matching items) |
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 | | Journal (article/letter/editorial) | | Minerals of the heulandite series in Norway - a progress report Fred Steinar Nordrum, Alf Olav Larsen...species in the heulandite series: heulandite-Ca, heulandite-Sr, heulandite-K and heulandite-Na, with calcium...mol-% of heulandite-Ca (heu-Ca), heulandite-Sr (heu-Sr), heulandite-Ba (heu-Ba), heulandite-Na (heu-Na)...(heu-Na), and heulandite-K (heu-K). Each analysis is denoted by two letters which assign the locality, a number...the analytical spot within the fragment. Most heulandite crystals are zoned, often showing large chemical |
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