8hlkmr ((BYSSOLITE, ADULARIA, PREHNITE)), $5 MINIMUM BID, Keystone Trap Rock Quarry, Cornog, Chester County, Pennsylvania, 4 x 2.5 x 2.5 cm, Miniature | |
Old classic Pennsylvania locality from an old collection. Hairlike Byssolite on white twinned terminated Adularia with associated jackstraw Prehnite crystals |