| Locality type: | Prospect |
| Classification |
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| Species: | 'Biotite' (not an IMA approved species) |
| Formula: | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Biotite data |
| Locality Data: | Click here to view Spruce Road Prospect (Spruce Mine; INCO Prospect; INCO Mine; Ely Nickel Copper Deposit; Spruce Road Deposit), Ely-Hoyt Lakes Area, Lake County, Minnesota, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 651726 |
| Long-form Identifier: | 1:3:651726:7 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 1.4km (0.9 miles) | ⓘSouth Filson Creek Prospect (Filson Creek), Ely-Hoyt Lakes Area, Lake County, Minnesota, USA |
| 13.6km (8.5 miles) | ⓘBirch Lake Deposit, Ely-Hoyt Lakes Area, Saint Louis County, Minnesota, USA |
| 15.2km (9.4 miles) | ⓘHibbingite occurrences, Lake County, Minnesota, USA |
| 23.8km (14.8 miles) | ⓘMesaba deposit (Minnamax deposit; Babbitt deposit; Babbitt Lake deposit; Amax Underground Mine), Ely-Hoyt Lakes Area, Saint Louis County, Minnesota, USA |
| 25.9km (16.1 miles) | ⓘMinnamax Exploration shaft prospect (Amax Exploration Inc), Ely-Hoyt Lakes Area, Saint Louis County, Minnesota, USA |
| 27.1km (16.8 miles) | ⓘNorthshore Mine (Peter Mitchell Mine; Reserve Mine; Babbitt Mine), Babbitt, Saint Louis County, Minnesota, USA |
| 54.6km (33.9 miles) | ⓘWater Hen Occurrence, Saint Louis County, Minnesota, USA |
| 59.4km (36.9 miles) | ⓘRove Slate Area Prospect Pits, Cook County, Minnesota, USA |
| 60.3km (37.5 miles) | ⓘPoohbah Lake Alkalic Complex, Sturgeon Lake Area and Burt Lake Area, Rainy River District, Ontario, Canada |
| 68.3km (42.4 miles) | ⓘGunflint Corridor West Occurrence, Gunflint Corridor, Cook County, Minnesota, USA |
| References |
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