These are natural Tektites that were found in China. Scientists believe that the Tektite’s origin is the result of meteorite impact on either terrestrial or lunar rocks. The tektites then formed when molten rock, created by the meteorite’s hyper-velocity impact, flew through the air hardening into natural glass with aerodynamic forms and surface features.
• You will receive 2 pieces similar to that shown
• Appx. .5-1″