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 ...

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 ...

Choosing a moss agate stone starts with its natural look. Each stone has a different moss-like pattern, which makes every ...

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 ...

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 ...