10hlkm.is ((BYSSOLITE)), $30 MINIMUM BID, Keystone Trap Rock Quarry, Cornog, Chester County, Pennsylvania, 7 x 4 x 4 cm, Cabinet | |
Large thick specimen of a mass of needle like dark green Byssolite crystals. This locality is now a water filled quarry. These are from all material collected 30+ years ago from and older collection. ex Rick Haefer collection |