| Locality type: | Quarry |
| Classification |
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| Species: | 'Smectite Group' (not an IMA approved species) |
| Formula: | A0.3D2-3[T4O10]Z2 · nH2O |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Visually Identified |
| Data |
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| Mineral Data: | Click here to view Smectite Group data |
| Locality Data: | Click here to view Mc Gregor Quarry, Highway 26, Clatsop County, Oregon, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1412059 |
| Long-form Identifier: | 1:3:1412059:6 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Smectite Group |
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| 48.8km (30.3 miles) | ⓘNeer Road, Goble, Columbia County, Oregon, USA |
| 57.9km (36.0 miles) | ⓘNestucca River Quarry, Beaver, Tillamook County, Oregon, USA |
| 62.7km (39.0 miles) | ⓘCape Lookout Quarry, Netarts, Tillamook County, Oregon, USA |
| 70.6km (43.9 miles) | ⓘClinton Knob, Ryderwood, Lewis County, Washington, USA |
| 73.1km (45.4 miles) | ⓘSE Lava Drive, Milwaukie, Clackamas County, Oregon, USA |
| 73.6km (45.7 miles) | ⓘElk Rock Island, Milwaukie, Clackamas County, Oregon, USA |
| 79.1km (49.1 miles) | ⓘBaird Creek Quarry, Wolf Point, Cowlitz County, Washington, USA |
| 82.4km (51.2 miles) | ⓘNew Era, Clackamas County, Oregon, USA |
| 83.1km (51.7 miles) | ⓘBig Tree Creek, Yacolt, Clark County, Washington, USA |
| 99.4km (61.8 miles) | ⓘDNR Lincoln Creek Quarry, Doty Hills, Lewis County, Washington, USA |
| References |
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