This may interest those with children who like geology/crystals

[MomofSev]

Discovered by chance, the secret Mexican crystal caves big enough to drive a car through

By Daily Mail Reporter

Last updated at 3:56 PM on 25th July 2011

 

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Discovered by two miners looking for lead, these amazing crystal-lined caves could be mistaken for Superman's ethereal Arctic lair.

These stunning white beams of gypsum have been growing at a snail's pace for hundreds of thousands of years in caves below Naica in Mexico.

Ten years after the amazing discovery, scientists are petitioning the Mexican government to claim for Unesco World Heritage status to protect the unique formations for future generations.

 

Wonder: The caves are made up of giant crystals formed over thousands of years

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[FarmerBeth]

So cool!  I'm showing my son this tomorrow!

[DianeFuentes]

My brother might appreciate this. :) Daughter is one year old, she can't appreciate just yet. But thanks for sharing!