World's largest quartz crystal cluster - photo

World's largest quartz crystal cluster on display in Namibia. Weighs 14,100 kg and took three years to excavate and remove.

https://s3-us-west-1.amazonaws.com/h...n_fullsize.jpg


Previously:

https://www.homemadetools.net/forum/...966#post187274
https://www.homemadetools.net/forum/...654#post163073
https://www.homemadetools.net/forum/...380#post200434
https://www.homemadetools.net/forum/...942#post148858
https://www.homemadetools.net/forum/...123#post195455

Impressive that they did not just break it up. The Earth is a fascinating place.

On one if the islands in Lake Erie you can walk down INSIDE the worlds largest geode.

I'd love to hear an estimate as to how long it may have taken for this to form.

Quote:

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Originally Posted by JoeVanGeaux

I'd love to hear an estimate as to how long it may have taken for this to form.

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Not quartz, but the giant gypsum crystals in the Mexican Cave of the Crystals...

https://en.wikipedia.org/wiki/Cave_of_the_Crystals

are estimated to be half a million years old.

Quote:

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Originally Posted by mklotz

Not quartz, but the giant gypsum crystals in the Mexican Cave of the Crystals...

https://en.wikipedia.org/wiki/Cave_of_the_Crystals

are estimated to be half a million years old.

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Thanks! That's well before my time!