| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| Coatesville, Valley Township, Chester County, Pennsylvania, USA | 39° 58' 57" N | 75° 49' 14" W | 2.9km (1.8 miles) | |
| Coatesville pegmatite locality, Coatesville, Valley Township, Chester County, Pennsylvania, USA | 39° 58' 59" N | 75° 49' 30" W | 3.2km (2.0 miles) | |
| Steidler pegmatite, Wagontown, Valley Township, Chester County, Pennsylvania, USA | 40° 0' 3" N | 75° 50' 35" W | 5.7km (3.5 miles) | |
| Wagontown, Valley Township, Chester County, Pennsylvania, USA | 40° 0' 38" N | 75° 50' 34" W | 6.5km (4.0 miles) | |
| Logan's Quarry, Upland, East Marlboro Township, Chester County, Pennsylvania, USA | 39° 54' 6" N | 75° 46' 5" W | 7.2km (4.5 miles) | |
| Chester County Poorhouse Quarry, West Bradford Township, Chester County, Pennsylvania, USA | 39° 56' 33" N | 75° 42' 51" W | 7.6km (4.7 miles) | |
| Upland, East Marlboro Township, Chester County, Pennsylvania, USA | 39° 53' 11" N | 75° 46' 27" W | 8.7km (5.4 miles) | |
| Unionville, Newlin Township, Chester County, Pennsylvania, USA | 39° 53' 43" N | 75° 44' 3" W | 9.3km (5.8 miles) | |
| Unionville, West Marlboro Township, Chester County, Pennsylvania, USA | 39° 53' 43" N | 75° 44' 3" W | 9.3km (5.8 miles) | |
| Downington, East Caln Township, Chester County, Pennsylvania, USA | 40° 0' 23" N | 75° 42' 11" W | 9.6km (6.0 miles) | |
| Corundum Hill, Unionville, Newlin Township, Chester County, Pennsylvania, USA | 39° 53' 0" N | 75° 43' 59" W | 10.4km (6.5 miles) | |
| R. Baily's Quarry, Unionville, West Marlboro Township, Chester County, Pennsylvania, USA | 39° 51' 59" N | 75° 46' 0" W | 11.0km (6.8 miles) | |
| Parkesburg Quartz Occurence, Parkesburg, Sadsbury Township, Chester County, Pennsylvania, USA | 39° 58' 37" N | 75° 55' 41" W | 11.0km (6.9 miles) | |
| Parkesburg, Sadsbury Township, Chester County, Pennsylvania, USA | 39° 57' 6" N | 75° 56' 3" W | 11.5km (7.1 miles) | |
| Henry Pusey's quarry, Willowdale, East Marlboro Township, Chester County, Pennsylvania, USA | 39° 51' 47" N | 75° 44' 43" W | 11.9km (7.4 miles) | |
| Willowdale, East Marlboro Township, Chester County, Pennsylvania, USA | 39° 52' 27" N | 75° 43' 3" W | 12.0km (7.5 miles) | |
| Willowdale, East Goshen Township, Chester County, Pennsylvania, USA | 39° 52' 27" N | 75° 43' 5" W | 12.0km (7.5 miles) | |
| Copesville, East Bradford Township, Chester County, Pennsylvania, USA | 39° 57' 29" N | 75° 39' 29" W | 12.1km (7.5 miles) | |
| Cornog, Wallace Township, Chester County, Pennsylvania, USA | 40° 4' 36" N | 75° 45' 17" W | 13.3km (8.3 miles) | |
| Keystone Trap Rock Quarry, Cornog, Wallace Township, Chester County, Pennsylvania, USA | 40° 4' 36" N | 75° 44' 53" W | 13.5km (8.4 miles) | |
| Kennett Square, Kennett Township, Chester County, Pennsylvania, USA | 39° 50' 48" N | 75° 42' 43" W | 14.9km (9.2 miles) | |
| Pocopson, Birmingham Township, Chester County, Pennsylvania, USA | 39° 54' 0" N | 75° 37' 33" W | 16.4km (10.2 miles) | |
| Marshall Quarry, West Goshen Township, Chester County, Pennsylvania, USA | 39° 58' 49" N | 75° 36' 6" W | 17.0km (10.6 miles) | |
| Osborne Hill, Birmingham Township, Chester County, Pennsylvania, USA | 39° 55' 24" N | 75° 36' 24" W | 17.0km (10.6 miles) | |
| Nevin's Quarry, Landenberg, London Britain Township, Chester County, Pennsylvania, USA | 39° 48' 45" N | 75° 45' 0" W | 17.2km (10.7 miles) | |
| Noble's Mine, Gap, Salisbury Township, Lancaster County, Pennsylvania, USA | 39° 58' 59" N | 76° 1' 0" W | 18.6km (11.6 miles) | |
| Gap, Salisbury Township, Lancaster County, Pennsylvania, USA | 39° 59' 13" N | 76° 1' 14" W | 19.0km (11.8 miles) | |
| Chadds Ford, Birmingham Township, Chester County, Pennsylvania, USA | 39° 52' 19" N | 75° 35' 51" W | 20.0km (12.4 miles) | |
| Swain's Quarry, Pennsbury Township, Chester County, Pennsylvania, USA | 39° 50' 10" N | 75° 37' 48" W | 20.2km (12.5 miles) | |
| General Trimble's Mine, East Whiteland Township, Chester County, Pennsylvania, USA | 40° 3' 4" N | 75° 35' 23" W | 20.5km (12.7 miles) | |
Corundum Hill, Unionville, Newlin Township, Chester County, Pennsylvania, USA