| Locality type: | Shaft |
| Classification |
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| Species: | Datolite |
| Formula: | CaB(SiO4)(OH) |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Datolite data |
| Locality Data: | Click here to view Seneca No. 2 shaft (Gratiot Mine), Seneca Mine, Seneca, Allouez Township, Keweenaw County, Michigan, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 475466 |
| Long-form Identifier: | 1:3:475466:4 |
| GUID (UUID V4): | b2bbb408-e960-42ad-b999-bdf8025ac364 |
| Nearest other occurrences of Datolite |
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| 1.3km (0.8 miles) | ⓘIroquois Mine, Seneca, Allouez Township, Keweenaw County, Michigan, USA |
| 1.3km (0.8 miles) | ⓘSeneca No. 1 Shaft, Seneca Mine, Seneca, Allouez Township, Keweenaw County, Michigan, USA |
| 3.5km (2.2 miles) | ⓘOjibway Mine, Ojibway, Allouez Township, Keweenaw County, Michigan, USA |
| 3.6km (2.2 miles) | ⓘAhmeek Mine, Ahmeek, Allouez Township, Keweenaw County, Michigan, USA |
| 5.0km (3.1 miles) | ⓘAllouez No. 2 Mine, Allouez Mine, Allouez, Allouez Township, Keweenaw County, Michigan, USA |
| 5.1km (3.2 miles) | ⓘAllouez No. 1 Mine, Allouez Mine, Allouez, Allouez Township, Keweenaw County, Michigan, USA |
| 5.9km (3.7 miles) | ⓘAllouez Mine, Allouez, Allouez Township, Keweenaw County, Michigan, USA |
| 6.6km (4.1 miles) | ⓘSouth Cliff Mine, Allouez Township, Keweenaw County, Michigan, USA |
| 6.8km (4.2 miles) | ⓘCliff Mine, Allouez Township, Keweenaw County, Michigan, USA |
| 6.9km (4.3 miles) | ⓘKearsarge Mine, Kearsarge, Calumet Township, Houghton County, Michigan, USA |
| References |
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