Byssolite Keystone Traprock Quarry, Cornog, Chester County, PA. Ex Dr. Steve Chamberlain collection, circ. 1964. This is one of those really special pieces of interest to any east-coast collector, collector of Chester County minerals or those looking for the truly unusual specimen. It is an elongated ball of pure byssolite fibers that measures 8 x 4.1 x 4 cm. Although compact looking it is probably just as it came out of the ground. The crystals are complete and not crushed looking. It probably only weights a couple of grams so it shocking to hold as it feels like a cotton ball in your hand! I have not seen one of this quality outside a museum. This is a very unique specimen and a mineralogical curiosity sure to raise lots of questions when viewed and handled. $550
SKU: GD-0233
$550.00Price