Rare footage inside Mexico's giant Crystal Cave (VID)
SOURCE: DIGG • 2010-01-23
TOPICS:
Physical Geography • Show Caves • Geography • Subterranea • Naica Mine • Cave Of The Crystals • Crystal Cave • Mammoth Cave National Park • Cave • Crystal • Selenite • Environment
[119 diggs @ Environment] Professor Iain Stewart describes what it was like to get a rare glimpse inside Mexico's Cave of Crystals, which contains some of the largest natural crystals ever found.
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