7hlkmis ((ADULARIA, BYSSOLITE, GOETHITE pseudo after PYRITE)), $1 MINIMUM BID, Keystone Traprock Quarry, Cornog, Chester County, Pennsylvania, 2 x 2 x 1 cm, Thumbnail | |
Twinned Adularia crystals from this classic Alpine formation in Pennsylvania. When viewed with a loop it is full of needles of Byssolite and micro cubes of Goethite pseudomorphs after Pyrite. One of the cubic pseudos is perched on a Byssolite crystal like a lollipop. Neat thumbnail sized specimen. |