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Florida State Stone
Adopted in 1979
Fossil Agatized Coral, adopted in 1979, is Florida's state stone. The genus of coral for the state stone is Montastrea. However, many types of coral species make-up this colorful coral.
Fossil coral pieces are sought by gemstone and fossil collectors around the world. Additionally, fossil coral gemstones are used in beads and other jewelry. Since agate is fairly hard (7 on the Mohs scale) and very durable, fossil coral is suitable for all kinds of jewelry.
Florida State Stone: Agatized Coral
Silicified Coral, Fossil Coral or Agatized Coral are the remnants of primal Coral Reefs that grew in the warm coastal waters of ancient oceans.
Coral is the outside skeleton of tiny ocean animals called polyps, which live in colonies attached to hard underwater surfaces. When alive, polyps combine their own carbon dioxide with the lime in warm seawater to form a limestone-like hard surface, or coral.
Agatized Coral forms through a process similar to Petrified Wood. Decaying organic materials are replaced with silica rich solutions which, over thousands of millennia,
under pressure, will grow into fascinating Chalcedony formations.
Coral will fossilize in one of two ways. Silica will replace a portion of the Coral, creating geodes, sometimes with brilliant boytrodial Quartz clusters inside. In extremely rare instances water will become trapped inside a geode. In the second occurrence, the Coral is completely replaced by silica creating some exotic specimens. This long process (20-30 million years) results in the formation of a "pseudomorph," meaning that one mineral has replaced another without having lost its original form. In 1979 agatized coral was designated the official state stone.
Agatized coral is found in three main Florida locations: Tampa Bay, the Econfina River, and the Withlacoochee/Suwannee river beds.
Coral has been used as a sacred tool in many cultures. Romans believed it had great healing powers. You'll find it very beneficial in recharging your
energy levels, especially if you are recovering from a physical or mental trauma.
The 2013 Florida Statutes
Rocks, Minerals, & Gems
State symbols represent things that are special to a particular state. Some of these symbols are the Gemstone, Minerals, Rocks. Of the 50 states, 19 have adopted a state gemstone and all have adopted some sort of earth symbol.