Locality: Railroad cut near Thomaston Dam, Litchfield County, Connecticut, USA
Size: 49 mm x 25 mm x 23 mm (1.9 in. x 1.0 in. x 0.9 in.)
Weight: 27 g (0.98 oz)
Light gray quartz and rhombic calcite specimen with small cubic pyrite crystals up to 1 mm on one side. The pyrite is best seen with magnification. Limonite coating over some pyrite crystals. Ex. Tom Penney collection.