6hlkmis ((CLINOZOISITE on QUARTZ)), $10 MINIMUM BID, Keystone Trap Rock Quarry, Cornog, Chester County, Pennsylvania, 7.5 x 4.5 x 3.5 cm, Cabinet | |
The crushed stone quarry is precambrian, Grenville, amphibolite gneiss and this specimen is from the classic Alpine cleft type hydrothermal recrystallization. This is a classic Pennsylvania locality with the quarry currently filled with water and no collecting possible without diving equipment or holding your breath a long time. Here is a large 6 cm non terminated Clinozoisite crystal with a slight bend in Quartz. Quartz has a sawn base, ex Rick Hafer collection. |