7hlkmis ((ANTIGORITE variety PICROLITE)), $5 MINIMUM BID, Cedar Hill Quarry, Lancaster County, Pennsylvania, 11 x 7 x 1 cm, Cabinet, | |
Here is a 1 cm thick slab of green Picrolite, a magnesium silicate of the Serpentine group and variety of Antigorite. The best specimens may well come from the Cedar Hill Quarry. |