Agate countertops are known for their beauty. The gemstone adds a unique look to any room. However, there are a few downsides ...

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 ...