Scientists have discovered a completely new type of opal formed by a common seaweed which harnesses natural technology by self-assembling a nanostructure of oil droplets to control how light reflects ...

The red dirt in central Australia might be a close mimic for the red surface of Mars, suggests research that sheds light on how opals formed in the land Down Under. Precious opal is Australia’s ...

Opal-like deposits spotted on Mars indicate the planet may have been wet for a billion years longer than previously thought, report US researchers. If confirmed, the findings, by NASA's Mars ...

An exhibition 100 million years in the making is set to offer gem enthusiasts in Doha a rare chance to see a stunning array of some of the rarest and most precious opals in the world. Opening to the ...

Scientists have discovered a completely new type of opal formed by a common seaweed which harnesses natural technology by self-assembling a nanostructure of oil droplets to control how light reflects ...