| Locality type: | Quarry |
| Classification |
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| Species: | Opal |
| Formula: | SiO2 · nH2O |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Visually Identified |
| Data |
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| Mineral Data: | Click here to view Opal data |
| Locality Data: | Click here to view William Willes #1 Quarry, Topsham, Sagadahoc County, Maine, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1009561 |
| Long-form Identifier: | 1:3:1009561:8 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Opal |
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| 5.5km (3.4 miles) | ⓘYedlin Locality, Standpipe Hill Quarries, Topsham, Sagadahoc County, Maine, USA |
| 30.6km (19.0 miles) | ⓘMaine Feldspar Quarry, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA |
| 42.3km (26.3 miles) | ⓘHeath Quarry, Casco, Cumberland County, Maine, USA |
| 52.7km (32.8 miles) | ⓘBennett Quarry, Buckfield, Oxford County, Maine, USA |
| 53.8km (33.4 miles) | ⓘMount Mica Quarry, Paris, Oxford County, Maine, USA |
| 55.3km (34.4 miles) | ⓘRyerson Hill Quarries, Paris, Oxford County, Maine, USA |
| 56.1km (34.8 miles) | ⓘStarrett Quarries, Warren, Knox County, Maine, USA |
| 65.9km (40.9 miles) | ⓘHeikkinen Quarry, Greenwood, Oxford County, Maine, USA |
| 66.2km (41.2 miles) | ⓘHayes Ledge Quarries (East and West), Greenwood, Oxford County, Maine, USA |
| 68.3km (42.4 miles) | ⓘEstes Quarry, West Baldwin, Baldwin, Cumberland County, Maine, USA |
| References |
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William Willes #1 Quarry, Topsham, Sagadahoc County, Maine, USA