This molten earth origin is what classes rainbow obsidian as an igneous rock. Lava destined to become obsidian cools rapidly once on the surface and, thanks to its viscous nature, is also below ...

Once properly equipped, head into a cave and look for the black and purple rocks, which is obsidian. Obsidian is found typically on the ceiling or walls near the lava in the cave, so you might ...

Discover how an analysis of more than 700 objects reveals obsidian came into the Aztec capital from far and wide.

The Yellowstone Plateau Volcanic Field has some of the largest rhyolite lava flows on Earth. Have you ever wondered what these flows look like in their interior, or how the ...

Obsidian is a shiny black rock found in mountain areas, especially near lava mountains in Ark Lost Island. It is an extremely valuable resource for crafting several items. This guide will cover ...

Obsidian is a shiny black rock found in mountain areas, especially near lava mountains in Ark: Ragnarok. It is an extremely valuable resource for crafting several items. This guide will cover the ...

Obsidian deposits are usually found near lava streams on this continent ... Obsidian appears in the form of shiny black rocks. For the uninitiated, they might look like regular rock deposits.

“We know lava has structural integrity because we have built columns from lava rocks to support whole houses ... field to the glass quality of obsidian or mass and opaqueness of basalt.

“We found the first documented evidence that people occupied these lava tubes ... artefacts made of obsidian, basalt and chert, as well as various stone structures and rock art.” ...