| 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 |
| Associated Minerals Based on Photo Data: |
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| Apophyllite Group | 2 |
| Mordenite | 2 |
| Data |
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| Mineral Data: | Click here to view Heulandite Subgroup data |
| Locality Data: | Click here to view Roadcuts, Kalama area, Cowlitz County, Washington, USA |
| Photo Gallery | View Gallery (3 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 91765 |
| Long-form Identifier: | 1:3:91765:8 |
| GUID (UUID V4): | 0 |
| Localities for Heulandite Subgroup in this Region |
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| Drays Mound, Interstate 5 Roadcuts, Roadcuts, Kalama area, Cowlitz County, Washington, USA |
| Kalama High School football field, Interstate 5 Roadcuts, Roadcuts, Kalama area, Cowlitz County, Washington, USA |
| Nearest other occurrences of Heulandite Subgroup |
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| 3.0km (1.8 miles) | ⓘNeer Road, Goble, Columbia County, Oregon, USA |
| 3.1km (1.9 miles) | ⓘGoble Quarry (Nicolai Quarry), Goble, Columbia County, Oregon, USA |
| 13.5km (8.4 miles) | ⓘRainier Quarry, Rainier, Columbia County, Oregon, USA |
| 29.6km (18.4 miles) | ⓘBaird Creek Quarry, Wolf Point, Cowlitz County, Washington, USA |
| 30.4km (18.9 miles) | ⓘ200 / 237 Road Quarry, Wolf Point, Cowlitz County, Washington, USA |
| 38.2km (23.7 miles) | ⓘSignal Peak, Cowlitz County, Washington, USA |
| 40.2km (25.0 miles) | ⓘBig Tree Creek, Yacolt, Clark County, Washington, USA |
| 46.4km (28.8 miles) | ⓘLacamas Creek, Orchards, Clark County, Washington, USA |
| 50.5km (31.4 miles) | ⓘMc Gregor Quarry, Highway 26, Clatsop County, Oregon, USA |
| 50.5km (31.4 miles) | ⓘLivingston Quarry, Orchards, Clark County, Washington, USA |
| References |
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Roadcuts, Kalama area, Cowlitz County, Washington, USA