Gemstones come in all rarities, from Common to Legendary, and while some are fairly easy to come across, Gems like Opal land in the Legendary category, making them rare to pop up in daily respawn ...

German retailer Koroit Opal Company specializes in curating and selling Australian gemstones. Koroit is not just the company’s namesake but a well-known opal mining region in Queensland. It’s also the ...

Following is a transcript of the video. Narrator: High-quality black opal can cost over $10,000 per carat, making it one of the world's most expensive gemstones. But mining black opal isn't easy.

The individual silica nanoparticles (glass beads, basically) are clear, but when packed together in certain configurations can give rise to flashes of color. This is due to Bragg diffraction off the ...

The discovery of trace amounts of opal gemstones on the surface of Mars could be a lead to evidence of life on the Red Planet, researchers at the University of Glasgow suggest in a new study. Earth ...

Mysterious "halos" of rock surrounding cracks in a Martian crater may be made of water-rich opal gemstones, a new study suggests. When you purchase through links on our site, we may earn an affiliate ...

In a find unlike anything seen before, a piece of opal from the island of Java in Indonesia holds some remarkable cargo: a stunningly preserved insect that may be at least four to seven million years ...