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Video: Deadly Crystal CaveThis forum post is dated 09/16/10. If you feel it is old or outdated, please follow up with a question or comment and someone may be able to update it, or reply with newer information if you have it. - Crystals
| Video: Deadly Crystal Cave A team of scientists explore a Mexican cave filled with giant crystals; some of the largest ever discovered. With temperatures near 120 degrees and over 80 percent humidity, the cave is one of the deadliest environments on earth. Giant Crystal Cave : SUN OCTOBER 12 9P et/pt : channel.nationalgeographic.com |
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