Add Yahoo as a preferred source to see more of our stories on Google. Known for their colors and patterns, collectors are often amazed at agates that turn up on Upper Peninsula lakeshores, with some ...

Mineral deposits can create markings that look like forests or mountains, and experts say each stone is distinctive. By Jill Newman When Tarun Adlakha displays a dendritic agate, with its finely ...

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 ...