| Locality type: | Quarry |
| Classification |
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| Species: | Opal var: Opal-AN |
| Formula: | SiO2 · nH2O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Opal-AN data |
| Locality Data: | Click here to view Aggregate Industries Quarry (Bayer-Mingolla Quarry; Trimount Quarry), Ashland, Middlesex County, Massachusetts, USA |
| Photo Gallery | View Gallery (2 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 127134 |
| Long-form Identifier: | 1:3:127134:8 |
| GUID (UUID V4): | b8334612-fe42-4b39-aa82-47185b3f0ade |
| Nearest other occurrences of Opal-AN |
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| 12.1km (7.5 miles) | ⓘMarlborough Junction locality, Marlborough, Middlesex County, Massachusetts, USA |
| 20.3km (12.6 miles) | ⓘRoute 62 locality (Potash Hill), Hudson, Middlesex County, Massachusetts, USA |
| 22.5km (14.0 miles) | ⓘMassachusetts Broken Stone Co. quarries (Weston Quarry; Stony Brook Quarry), Weston, Middlesex County, Massachusetts, USA |
| 23.9km (14.8 miles) | ⓘBolton Lime Quarries (Bolton Quarry; Whitcomb Quarry; Hildreth Quarry), Bolton, Worcester County, Massachusetts, USA |
| 25.7km (16.0 miles) | ⓘGrants Mills, Cumberland, Providence County, Rhode Island, USA |
| 26.1km (16.2 miles) | ⓘSneech Pond copper mines (Copper Mine Hill), Cumberland, Providence County, Rhode Island, USA |
| 26.5km (16.5 miles) | ⓘWest Roxbury Crushed Stone Quarry (West Roxbury Trap Rock Co. Quarry; Grove St. Quarry), West Roxbury, Boston, Suffolk County, Massachusetts, USA |
| 35.0km (21.8 miles) | ⓘJungle Road area, Leominster, Worcester County, Massachusetts, USA |
| 38.7km (24.0 miles) | ⓘBlueberry Mountain Quarry (Blueberry Hill), Woburn, Middlesex County, Massachusetts, USA |
| 44.2km (27.5 miles) | ⓘSouth Street construction site, Fitchburg, Worcester County, Massachusetts, USA |
| References |
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Aggregate Industries Quarry, Ashland, Middlesex County, Massachusetts, USA