| Locality type: | Quarry |
| Classification |
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| Species: | Quartz var: Chalcedony |
| Formula: | SiO2 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Chalcedony data |
| Locality Data: | Click here to view Agate Springs Fossil Quarries, Agate Fossil Beds National Monument, Sioux County, Nebraska, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 102487 |
| Long-form Identifier: | 1:3:102487:6 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Chalcedony |
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| 5.4km (3.4 miles) | ⓘAgate, Sioux County, Nebraska, USA |
| 37.4km (23.2 miles) | ⓘCrawford Dam, Crawford, Dawes County, Nebraska, USA |
| 54.5km (33.8 miles) | ⓘOrella, Sioux County, Nebraska, USA |
| 64.4km (40.0 miles) | ⓘGreen Hope Mine, Goshen County, Wyoming, USA |
| 67.3km (41.8 miles) | ⓘArdmore, Fall River County, South Dakota, USA |
| 74.4km (46.2 miles) | ⓘGreen Hope mine, Hartville Uplift Mining District, Goshen County, Wyoming, USA |
| 80.8km (50.2 miles) | ⓘSunrise Mine, Sunrise, Hartville Mining District, Platte County, Wyoming, USA |
| 84.2km (52.3 miles) | ⓘHartville Onyx mine, Platte County, Wyoming, USA |
| 94.0km (58.4 miles) | ⓘOelrichs, Fall River County, South Dakota, USA |
| References |
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