| Locality type: | Quarry |
| Classification |
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| Species: | Opal |
| Formula: | SiO2 · nH2O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Opal data |
| Locality Data: | Click here to view Bare Hills Serpentine Quarry East, Bare Hills, Baltimore County, Maryland, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 948113 |
| Long-form Identifier: | 1:3:948113:8 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Opal |
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| 0.3km (0.2 miles) | ⓘUnnamed Chromite prospects, Bare Hills, Baltimore County, Maryland, USA |
| 10.3km (6.4 miles) | ⓘLord Baltimore Drive Quartz occurrence area, Windsor Mill, Baltimore County, Maryland, USA |
| 13.2km (8.2 miles) | ⓘPatapsco Glen Construction Site, Woodlawn, Baltimore County, Maryland, USA |
| 15.7km (9.8 miles) | ⓘDelight Quarry (Soldier's Delight Quarry; Dyer Quarry), Soldiers' Delight ridge, Delight, Baltimore County, Maryland, USA |
| 18.5km (11.5 miles) | ⓘGarey Ore Bank, Anne Arundel County, Maryland, USA |
| 46.0km (28.6 miles) | ⓘMaryland Green Marble Corporation Quarry (Cardiff Serpentine Quarry), Cardiff, Harford County, Maryland, USA |
| 46.4km (28.8 miles) | ⓘPaint Branch, White Oak, Montgomery County, Maryland, USA |
| 46.7km (29.0 miles) | ⓘWhite Oak, Montgomery County, Maryland, USA |
| 53.9km (33.5 miles) | ⓘWiant's Quarry (Weiant Quarry), Pilot, Cecil County, Maryland, USA |
| 59.7km (37.1 miles) | ⓘHunting Hill Quarry, Rockville, Montgomery County, Maryland, USA |
| References |
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