Zircon from Simpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
USA | |
| Betts, John. (1999): The Quarries and Minerals of the Dayton Road District, South Glastonbury, Connecticut. Rocks and Minerals. Volume 74, Number 2. pp. 110-121. |
Simpson Quarry, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA