An agate gemstone unearthed in Brazil has gone viral for its striking resemblance to Cookie Monster of "Sesame Street" fame. A geologist in California says he's received multiple offers of $10,000 for ...

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 ...

THIS exquisite image captures the astonishing internal structure of crazy lace agate, also known as Mexican agate. This section of the mineral is some 65 million years old. Agate is related to quartz ...

Lake Superior agates often feature a brownish-red exterior that may be pitted and slightly translucent. They’re easiest to ...

Dong Guirong teaches students winding techniques on agate gemstones in Xin Barga Right Banner, Inner Mongolia autonomous region, in August last year. CHINA DAILY Despite being partially sighted, Dong ...

Despite being partially sighted, Dong Guirong has not only made a living from spotting precious gemstones in the dusty soil of the Inner Mongolia autonomous region, she's gone on to become a ...