Snowflake obsidian is a form of volcanic glass that features white or ... It appears as a dark glassy rock that’s typically black, although it can take on hues of green, brown, and other colors ...

Learn how the eruption of Mount Vesuvius in AD 79 transformed one unfortunate Herculaneum resident’s brain into organic glass ...

Hand-carved arrowheads and jagged spears made of obsidian, a sharp rock formed by volcanic magma, are remnants of vast ...

Obsidian does not naturally occur in Alberta where the artifacts are being unearthed at Early Prehistoric archaeological ...

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 ...

Lava flows are masses of magma that pour onto the Earth's surface during an eruption; they include both moving lava and the resulting solidified deposits of black ... of volcanic rock and lava ...

The Painted Desert isn’t just another Instagram backdrop. Beyond the tourist spots and familiar viewpoints, this 93,500-acre ...

Jeju Island, a stunning jewel off the southern coast of South Korea, is a destination that offers a perfect blend of natural beauty, unique culture, and rich history. With its lush landscapes, ...

An analysis of a 30,000-year-old fossil vulture from Central Italy has revealed for the first time that volcanic rock can preserve microscopic details in feathers -- the first ever record of such a ...