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Rockhounding in Florida – What Rocks You Can Find and Where
ByCeleste
Upcoming Rockhounding Events in Florida Agatized Coral Agatized coral occurs when silica in the ocean water hardens, replacing the limy corals with a form of quartz known as chalcedony. 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….
Rockhounding in Illinois – What Rocks You Can Find and Where
ByCeleste
Exploring the Rocks of Illinois Even though Illinois does not have any mountain ranges or deep canyons, the geology of the state has many complexities. Known as the Prairie State, at first glance it seems an unlikely place to collect rock and mineral specimens. The rich prairies across Illinois are themselves derived from ancient rocks,…