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11-04-2014, 05:34 AM
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Weird Places: Mexico's Giant Crystal Cave
 Weird Places: Mexico's Giant Crystal Cave SciShow explores a place that's as beautiful as it is dangerous: Mexico's Giant Crystal Cave, where chemistry has created the world's largest crystals -- but in an environment so hostile... From:SciShow Views:49  Time:04:00More inEducation أكثر... ??????? ??????: Weird Places: Mexico's Giant Crystal Cave || ??????: ahlam1399 || ??????: اسم منتداك
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