Polished Agate Slice on South Bass Island in

on South Bass Island in Lake Erie

“Ice” selenite is a variety of gypsum that is often sought after for its high clarity and sheen

5 ozFossil Type & Species: Trace Fossil & "Grallator"Location: Portland Formation

Bloodstone has often been given religious significance due to the blood-like pattern

Polished Agate Slice on South Bass Island inSize: 4. 5 x 2. 3 x 0. 8 in. Weight: 8. 4 oz Agate is a combination of chalcedony and quartz. It is easily recognizable by its multitude of colors and banding. Some of the most common formations of agates occur in geodes. These are cavities of gas that are eventually filled with fluids high in silica, allowing the formation of agate to take place. These geodes are then cut and polished to show their banding and crystals within them to be put on