black. Origin: Obsidian rock forms from molten lava that has cooled very quickly, meaning it can be found in areas where there is (or has been) volcanic activity including New Zealand, Japan ...

Black obsidian rock glistens in the sun along sections ... and skirted the creek and several small ponds. The otherworldly landscape was dominated by Middle Sister, which rose above the ...

Black obsidian rock glistens in the sun along sections ... and skirted the creek and several small ponds. The otherworldly landscape was dominated by Middle Sister, which rose above the ...

"We've found beautiful crystal rocks [and] obsidian rocks ... the inventions Mr Elliott created to free his landscaping stone from the red and black volcanic earth. The heaviest rocks can weigh ...

Obsidian is a black, often translucent rock. Volcanic eruptions sometimes ooze out magma that turns into this natural glass as it cools. Obsidian is hard, durable and can be worked to a razor ...

Black obsidian rock glistens in the sun along sections ... and skirted the creek and several small ponds. The otherworldly landscape was dominated by Middle Sister, which rose above the ...