Dims: 4.7" x 4.0" x 0.6" (11.9 x 10.2 x 1.5 cm)
Wt: 8.61 oz. (244.1 g)
Sparta, Illinois, U.S.A.
A rather small example of the well-known product of the coal mines of Sparta, Illinois, this specimen consists of a slab of black shale host rock that holds a single Pyrite "sun" or "dollar", a round, flat concretion. This particular sun is rather small, having a diameter of 1.3" (3.3 cm) and a thickness of 0.1 (0.3 cm), but is in excellent condition, showing no damage. It has a rather pale golden coloration and an almost matte, metallic luster. It does not appear to have been broken out of the rock and re-attached, though many often are. The shale host rock has a rather smooth texture and a slightly waxy sheen to it- I believe that it has been impregnated with a sealant to give it more strength and darken it for better contrast.