Polished Agate Slice Ca)₁₋₂Si₃₋₂ O₈

Ca)₁₋₂Si₃₋₂ O₈

Stilbite is a member of the zeolite group of minerals

Fossil Type & Species: Compression & Pinnixia galliheri

This unique freeform of amethyst crystals is paired with cute little formations of double terminated calcite crystals

Polished Agate Slice Ca)₁₋₂Si₃₋₂ O₈Size: 3. 8 in. Weight: 8. 5 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 display. Agates have