| 8hlkmis ((ADULARIA, BYSSOLITE)), $10 MINIMUM BID, Keystone Trap Rock Quarry, Cornog, Chester County, Pennsylvania, 6 x 5 x 4 cm, Miniature | |
_small.jpg) | 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 fine specimen covered with small twinned and non twinned Adularia with hairlike Byssolite. ex Rick Haefer collection. |
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