| Locality type: | Mine |
| Classification |
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| Species: | Chrysocolla |
| Formula: | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Chrysocolla data |
| Locality Data: | Click here to view Theodora Mine, Herndon, Fairfax County, Virginia, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 137113 |
| Long-form Identifier: | 1:3:137113:0 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Chrysocolla |
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| 6.6km (4.1 miles) | ⓘSterling Copper Occurrence, Sterling, Loudoun County, Virginia, USA |
| 14.1km (8.8 miles) | ⓘBull Run Quarry, Conklin, Loudoun County, Virginia, USA |
| 22.2km (13.8 miles) | ⓘHunting Hill Quarry, Rockville, Montgomery County, Maryland, USA |
| 48.9km (30.4 miles) | ⓘElk Run Prospect, Potomac Basin, Fauquier County, Virginia, USA |
| 60.9km (37.8 miles) | ⓘCarroll Mine, Sykesville, Carroll County, Maryland, USA |
| 61.3km (38.1 miles) | ⓘDolyhyde Mine (Dolly Hyde Mine), Libertytown, Frederick County, Maryland, USA |
| 61.7km (38.3 miles) | ⓘSpringfield Mine (Mr. Tysons Mine; Sykesville Mine), Sykesville, Carroll County, Maryland, USA |
| 61.7km (38.4 miles) | ⓘLiberty Mine, Libertytown, Frederick County, Maryland, USA |
| 68.9km (42.8 miles) | ⓘMills Prospect (Cove Farm Prospect), Northern Section-Blue Ridge Province, Warren County, Virginia, USA |
| 69.2km (43.0 miles) | ⓘMineral Hill Mine, Louisville, Carroll County, Maryland, USA |
| References |
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