The story of these glass beads begins with explosive volcanic activity that would have been spectacular to witness. The beads ...

which has been created through a partial crystallization of the glass. Since it's born out of molten rock, obsidian is only found in volcanic regions of the world, including in parts of the United ...

The Apollo astronauts didn't know what they'd find when they explored the surface of the moon, but they certainly didn't ...

When Apollo astronauts walked on the moon in the 1970s, they made all kinds of unexpected discoveries. One of the most surprising was the sight of bright orange, glassy beads sparkling among the ...

A tiny glass bead retrieved by China's Chang'e-5 lunar mission is offering scientists a glimpse into the moon's hidden depths and providing insight into the violent forces that helped shape the ...

Lumira’s Sphera diffuser is encased in a smoked glass jar, allowing you to stop scenting your space whenever you’re ready. Lumira Volcanic rock is formed from solidified lava. It is highly ...

5 fast facts about volcanoes Volcanic ash is made of fragments of rocks, minerals and volcanic glass. These pieces are the size of a grain of sand or smaller. The lava that erupts at Hawaii's ...

With a little guidance and a lot of practice, even you can make stone tools the way our oldest ancestors did – and learn to recognize the signs of a deliberately made tool.

during the natural alteration of volcanic glass and ash, giving the rock a "mudrock-like" aspect." The alteration of the ash due to passage of water induced the precipitation of zeolites ...

A stone like obsidian, which is volcanic glass, is the poster child for conchoidal fracture. Of course, there is a lot of variation in the quality of rock that hominins have used for manufacturing ...