Out of This World: 19 Stones and Minerals That Belong on Another Planet

Amazing shapes and magnificent colors, these aren't your ordinary rocks. The world’s biggest amethyst geode – The empress of Uruguay Rhodochrosite Luz Opal with Galaxy inside Burmese Tourmaline Azurite Titanium…

Libyan Desert Glass formation, uses

Formation of Libyan Desert Glass: The exact formation of Libyan Desert Glass is still debated, but the most widely accepted theory involves the following: Meteorite Impact or Airburst Event:Meteorite Impact: One hypothesis suggests that a meteorite…