| Locality type: | Prospect |
| Classification |
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| Species: | Quartz |
| Formula: | SiO2 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Quartz data |
| Locality Data: | Click here to view Grassy Island Prospect, Rainy Lake, Koochiching County, Minnesota, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 502987 |
| Long-form Identifier: | 1:3:502987:7 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Quartz |
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| 3.8km (2.4 miles) | ⓘLittle American Mine, Rainy Lake, Koochiching County, Minnesota, USA |
| 7.1km (4.4 miles) | ⓘLyle Mine, Rainy Lake, Koochiching County, Minnesota, USA |
| 7.2km (4.5 miles) | ⓘCN Rocky Islet quarry (Seven Mile quarry), Watten Township, Rainy River District, Ontario, Canada |
| 7.2km (4.5 miles) | ⓘBushyhead Island Prospect, Rainy Lake, Koochiching County, Minnesota, USA |
| 12.5km (7.7 miles) | ⓘSteamboat Islet Prospect, Rainy Lake, Saint Louis County, Minnesota, USA |
| 12.7km (7.9 miles) | ⓘCranberry Islet Prospect, Rainy Lake, Saint Louis County, Minnesota, USA |
| 17.1km (10.6 miles) | ⓘBaseline Bay outcrop, Fort Frances, Rainy River District, Ontario, Canada |
| 41.7km (25.9 miles) | ⓘPort Arthur Mine, Little Turtle Lake Area, Rainy River District, Ontario, Canada |
| 42.4km (26.4 miles) | ⓘFoley Mine (Santa Fe Mine), Bad Vermilion Lake Area, Rainy River District, Ontario, Canada |
| 46.1km (28.7 miles) | ⓘGolden Star Mine, Bad Vermilion Lake Area, Rainy River District, Ontario, Canada |
| References |
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