| Locality type: | Mine |
| Classification |
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| Species: | Actinolite |
| Formula: | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Actinolite data |
| Locality Data: | Click here to view Iron Hill Mine (Chestnut Hill Mine), Newark, New Castle County, Delaware, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 860926 |
| Long-form Identifier: | 1:3:860926:7 |
| GUID (UUID V4): | 09e3fe99-7996-4a8f-8541-e4e572d3365a |
| Nearest other occurrences of Actinolite |
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| 25.1km (15.6 miles) | ⓘSylmar, West Nottingham Township, Chester County, Pennsylvania, USA |
| 34.3km (21.3 miles) | ⓘOsborne Hill, Birmingham Township, Chester County, Pennsylvania, USA |
| 37.9km (23.6 miles) | ⓘWiant's Quarry (Weiant Quarry), Pilot, Cecil County, Maryland, USA |
| 38.9km (24.1 miles) | ⓘLenni, Middletown Township, Delaware County, Pennsylvania, USA |
| 41.3km (25.6 miles) | ⓘWilliamson Trade School, Middletown Township, Delaware County, Pennsylvania, USA |
| 45.3km (28.2 miles) | ⓘGap Mine, Bart Township, Lancaster County, Pennsylvania, USA |
| 48.9km (30.4 miles) | ⓘKeystone Trap Rock Quarry, Cornog, Wallace Township, Chester County, Pennsylvania, USA |
| 50.8km (31.6 miles) | ⓘMaryland Green Marble Corporation Quarry (Cardiff Serpentine Quarry), Cardiff, Harford County, Maryland, USA |
| 59.4km (36.9 miles) | ⓘHopewell mine, Hopewell Mines, Warwick (Saint Marys), Warwick Township, Chester County, Pennsylvania, USA |
| 60.0km (37.3 miles) | ⓘJones Mine, Morgantown, Caernarvon Township, Berks County, Pennsylvania, USA |
| References |
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