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, ...

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, ...

Like other igneous rocks, the glossy glass originates from molten rock that has been spewed out from the bowels of the Earth via volcanoes.. Before we get into the snowflakes, obsidian is formed ...

Obsidian is an example of an extrusive igneous rock. Obsidian has crystals which are so small that they are impossible to see without a microscope. Intrusive.

1955 Chevy - Obsidian. Like the igneous rock, Sam Bergman’s Bow Tie is as black as night with a relentless edge. Isaac Mion Writer Oct 10, 2013. 1955 Chevy - Obsidian.

Seattle startup Igneous has reeled in a $25 million investment round to fuel growth of its software that helps companies manage their unstructured data. WestRiver Group led the Series C round ...

Unpolished, the igneous rock can look dusty gray or brown. But polished, it becomes pitch black and shiny—sometimes so shiny, you can sometimes see your own reflection . Obsidian from Yellowstone.