Snowflake obsidian is a form of volcanic glass that features white or grayish “snowflake” shapes made of embedded cristobalite. These pretty patterns are not artificially added as a cheap ...

As with other forms of obsidian, rainbow obsidian is both rock and glass. However ... which has a long history of volcanic activity. There are four mines in this region that, with a permit ...

Born in Leeds, Joe finished his Spanish degree in 2018 before becoming an English teacher to football (soccer) players and managers, as well as collaborating with various football media outlets in ...

The center of the Earth is so hot that it could satisfy the entire world’s energy needs. But can scientists safely tap into ...

It was a surprising discovery when scientists examining the remains of a man who died in bed in the ancient city of Herculaneum after Italy's Mount Vesuvius erupted in 79 AD found dark fragments ...

Along with volcanic ash, his brain and spinal cord ... The shards, or clasts, have a glassy luster, making them look a lot like obsidian, a glass formed from lava when it cools very quickly.

The process is called vitrification. "Obsidian glass, that is, volcanic glass, forms when lava is very quickly cooled, for example, where it enters into water," Mr Giordano added. According to ...

A man, thought to be the custodian of a religious group, was believed to be in his bed asleep, when a super-hot ash cloud hit ...

Scientists say they have worked out the sequence of events that likely killed the victim and led to the formation of the unique and puzzling glass ...

The obsidian-like “organic glass” formed ... to uncover the exact conditions required for this act of volcanic alchemy. The glass couldn’t have formed when the volcano’s pyroclastic ...

"Taking one of these fragments, it had a black appearance and shiny surfaces quite similar to obsidian, a natural glass of volcanic origin - black and shiny, whose formation is due to the very ...