In a full day's search on the last day of March, Mike Jacobs of Monticello and I found 121 agates. That seemed a lot to an amateur like me, whose agate hunting has been largely confined to looking ...

Known for their colors and patterns, collectors are often amazed at agates that turn up on Upper Peninsula lakeshores, with some known to be up to 20 pounds, according to the Michigan Department of ...

Two women were moving rocks on a beach along the Yellowstone River the other day. “Did you lose something?” I asked. “No,” they replied. They were looking for agates. You may have seen agates in gift ...

See that strange rock up there? It’s a nifty trick of geology that’s captured three phases of matter, with a solid exterior, ...

Known for their integrated colors and patterns, collectors are often amazed at agates that wind up on Upper Peninsula lakeshores. Known for its diversity and beauty, an agate stone is a form of quartz ...

The geochemistry of agate and chalcedony in volcanic rocks represents an intricate record of silica precipitation and crystallisation processes occurring under variable thermal and chemical conditions ...

Eleanor has an undergraduate degree in zoology from the University of Reading and a master’s in wildlife documentary production from the University of Salford.View full profile Eleanor has an ...