Pyritized Crinoid Crown - Fossil Specimen light brown Grit : 50/150

Grit : 50/150

Approximate Weight for 1 piece: 4

Its swirling layers of light and dark green make each piece unique

where silica gels solidified within gas bubbles or seams of rhyolite and tuff

striking crystal habits make it a favorite among mineral collectors

Pyritized Crinoid Crown - Fossil Specimen light brown Grit : 50/150Mined from: Silica Shale, Sylvania area, Lucas County, Ohio, U. S. A Era: Paleozoic Geological Age: Middle Devonian, Givetian, approximately 387. 9382. 3 mya Description: This one of a kind pyrite crinoid crown fossil specimen is a large gray matrix plate preserving multiple crown sections with long, curved arms spread across the surface. The fossilized crowns stand out clearly against the lighter stone, with dark pyritized arm segments and raised cup