| Locality type: | Mine |
| Classification |
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| Species: | 'Deweylite' (not an IMA approved species) |
| Formula: | Mg4Si3O10 · 6H2O ? |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Deweylite data |
| Locality Data: | Click here to view Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 489332 |
| Long-form Identifier: | 1:3:489332:5 |
| GUID (UUID V4): | c99185ea-8d42-4142-95d1-5a630cc1d9a0 |
| Nearest other occurrences of Deweylite |
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| 49.7km (30.9 miles) | ⓘCorundum Hill, Unionville, Newlin Township, Chester County, Pennsylvania, USA |
| 62.7km (38.9 miles) | ⓘPrince's Soapstone Quarry, Lafayette Station, Philadelphia County, Pennsylvania, USA |
| 63.7km (39.6 miles) | ⓘWay's Quarry, Centerville (Centreville), New Castle County, Delaware, USA |
| 65.7km (40.8 miles) | ⓘWood's Chrome Mine, Texas, Little Britain Township, Lancaster County, Pennsylvania, USA |
| 65.8km (40.9 miles) | ⓘCarter's Chrome Mine, Little Britain Township, Lancaster County, Pennsylvania, USA |
| 66.2km (41.1 miles) | ⓘGoat Hill Magnesia Quarries, West Nottingham Township, Chester County, Pennsylvania, USA |
| 66.8km (41.5 miles) | ⓘCedar Hill Quarry (Stoltzfuss Quarry), Fulton Township, Lancaster County, Pennsylvania, USA |
| 67.0km (41.6 miles) | ⓘJenkins Mine (Jenkins Corner; North Rock Springs), Fulton Township, Lancaster County, Pennsylvania, USA |
| 67.5km (42.0 miles) | ⓘHaines & Kibblehouse Penn-Maryland Materials Quarry, Fulton Township, Lancaster County, Pennsylvania, USA |
| 70.1km (43.6 miles) | ⓘWiant's Quarry (Weiant Quarry), Pilot, Cecil County, Maryland, USA |
| References |
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