| Locality type: | Mine |
| 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 Levens Mine (North Langworthy Mine), Dubuque, Dubuque County, Iowa, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1016347 |
| Long-form Identifier: | 1:3:1016347:8 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Quartz |
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| 0.9km (0.5 miles) | ⓘLevel Mine, Dubuque, Dubuque County, Iowa, USA |
| 1.5km (0.9 miles) | ⓘStewart and Barlett Mine, Dubuque, Dubuque County, Iowa, USA |
| 1.7km (1.1 miles) | ⓘKilbourne Mine (Karrick and Jones Mine), Dubuque, Dubuque County, Iowa, USA |
| 3.1km (1.9 miles) | ⓘFourteeth Street Mine, Julian Avenue Crevices, Dubuque, Dubuque County, Iowa, USA |
| 4.2km (2.6 miles) | ⓘUnnamed Agate occurrence, Dubuque, Dubuque County, Iowa, USA |
| 4.3km (2.7 miles) | ⓘBrugh Mine (Amsden Mine), Dubuque, Dubuque County, Iowa, USA |
| 5.0km (3.1 miles) | ⓘBeadle Mine (Dubuque and Lake Superior Mine), Key West, Table Mound Township, Dubuque County, Iowa, USA |
| 6.3km (3.9 miles) | ⓘBronson Mine, Durango, Dubuque County, Iowa, USA |
| 7.5km (4.7 miles) | ⓘTimber Range Mine (Durango Drybone Mine; Old Ewing diggings), Durango, Dubuque County, Iowa, USA |
| 19.2km (12.0 miles) | ⓘCardiff No. 2 Mine, Potosi area, Grant County, Wisconsin, USA |
| References |
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