| 06hlkmis ((ADULARIA with BYSSOLITE, GOETHITE pseudomorph after PYRITE)), $10 MINIMUM BID, Keystone, Trap Rock Quarry, Cornog, Chester County, Pennsylvania, 3 x 3 x 2.5 cm, Miniature | |
 | Here is a old specimen from a defunct locality of a quarry filled with water. It is also a classic Pennsylvanian locality. This specimen has double terminated and twinned crystals of Adularia. On the Adularia are the hairlike Byssolite and there is also cubic Goethite pseudomorphs after Pyrite. |
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