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 ...

Decay of uranium to lead within tiny crystals ... rocks and fossils emerging from the side of Mount Ashibetsu in Japan, researchers have precisely refined the timing and duration of Ocean Anoxic ...

The world's oldest rocks are spread across the globe and paint a picture of Earth's turbulent early history. Here are some of the most notable and important formations scientists have discovered.

But new analysis of crystals from ... of the lunar magma ocean,” as they wrote in a paper published today in Nature. The sheer number of 4.35 billion year old rocks on the surface suggested ...

Evidence for the use of rock crystal - a rare type of perfectly transparent quartz which forms in large hexagonal gems - has occasionally been found at prehistoric sites in the British Isles, but ...

More than 2,400 ounces of gold were found in the largest rock, RNC Minerals says Miners in Western Australia say they have discovered two huge gold-encrusted rocks that are each estimated to be ...

While these crystals are probably similar in shape to the pointy hexagonal prisms found in geodes and gem ... is likely covered in an ocean of magma, with "snowflakes" composed of iron-, sodium ...

organic carbon-rich shales that matched samples—in composition and age—from both the Atlantic Ocean and rock formations in Italy. Widespread lack of oxygen was the most likely explanation for ...

They examined 3.5-billion-year-old rocks from the Pilbara region of Western Australia under a transmission electron microscope and found unexpected minerals. The Pilbara is renowned for its ...

(WPRI) — The rare hooded seal spotted eating rocks in Providence earlier this year has returned to the ocean. The female ... this was an Arctic species found so far down south.” ...