3. There is a Volcano in Iceland that is Made Entirely of Glass
The volcano, known as Obsidian, is located in the Mýrdalsjökull glacier in Iceland and is one of the unique geological formations in the world.
The glass was formed when lava from the volcano cooled quickly, causing it to solidify into a smooth, black glass-like substance.
Visitors to the volcano can see the beautiful and otherworldly landscape unlike anything else on Earth.
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