8hlkmis ((BYSSOLITE on ADULARIA)), $8 MINIMUM BID, Keystone Trap Rock Quarry, Cornog, Chester County, Pennsylvania, 9 x 8 x 6 cm, Cabinet | |
Old material from an old Pennsylvania collection from a now flooded quarry and Pennsylvania classic locality. Minerals are from an Alpine cleft type hydrothermal recrystalllization per mindat.org. Matrix trap rock is Precambian igneous Amphibolite Gneiss. Here is a patch of white Adularia crystals covered with hairlike Byssolite. ex Rick Haefer collection. |