Hundreds of 'Rock Crystals' Found From a 6000-Yr-Old Site Indicate Quartz Fragments Were Used to Decorate Graves The burial practices of ancient populations have always intrigued researchers because ...

Curiosity rover cracked open a Martian rock, revealing a sight never before seen on Mars - a dazzling display of yellow ...

The only sample found thus far, weighing a mere 1.61 carats (0.3 grams), has sparked immense intrigue among scientists and collectors alike. The kyawthuite crystal was discovered in 2010 by ...

Large crystals found in geodes and other rocks are relatively rare. Pink ChalcedonyA pink chalcedony shows off its beauty. Chalcedonies include many types of cryptocrystalline quartz gems and ...

Opinions expressed by Forbes Contributors are their own. David Bressan is a geologist who covers curiosities about Earth. “We were thrilled!” said Dr. David Grant, a researcher at the ...

the rock broke open, revealing yellow crystals of elemental sulfur: brimstone. Although sulfates are fairly common on Mars, this represents the first time sulfur has been found on the red planet in ...