| 8hlkmis ((BYSSOLITE on ACTINOLITE with ADULARIA and PREHNITE on AMPHIBOLITE GNEISS)), $20 MINIMUM BID, Keystone Trap Rock Quarry, Cornog, Chester County, Pennsylvania, 7 x 5 x 5 cm, Cabinet | |
_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 with hairlike Byssolite and dark greenish black Actinolite with minore Adularia and jackstraw Prehnite on a matrix of gneiss. ex Rick Haefer collection. |
_small.jpg) |
<-- (BACK TO HOMEPAGE)
HOMEPAGE IS WHERE YOU CAN GET TO OTHER SECTIONS