Halberg Quarries
Past ProducerMicaSurfaceUSGS MRDS
Location
| State | Connecticut |
| County | Middlesex |
| Coordinates | 41.51829, -72.52952 |
Commodities
| Primary | Mica |
| Tertiary | Beryllium, Feldspar |
Mine Details
| Status | Past Producer |
| Type | Surface |
| Data Source | USGS MRDS |
| Source ID | 10288966 |