Fluorite Goethite Each piece consists of multiple

Each piece consists of multiple clusters of diamond calcite with high shine on a matrix of Limonite

the crab fossil's color can vary from brown to gold depending on what minerals were present at time of fossilization

depending on the presence of minerals like manganese or iron during the formation of the crystals

it is largely mined as an industrial ore across the globe

The herring-like fish of the genus Knightia were far and away the most abundant freshwater fish during this era

Fluorite Goethite Each piece consists of multipleFluorite is one of the most variable of all crystalline minerals, occurring in shades of blue, green, purple, red and many other colors corresponding to their physical makeup and conditions when the mineral was formed. The name fluorite comes from its use as a flux, or chemical cleaning agent, in iron smelting and other metallurgy. Pure fluorite is clear, but most specimens have vivid color due to various impurities and are often fluorescent. With a