https://padlet.com/david_nielsen2023/4k17fqejjgrj en-us 2018-12-20 17:31:09 UTC 2026-03-01 17:09:00 UTC hello@padlet.com david_nielsen2023 https://padlet.com/david_nielsen2023/4k17fqejjgrj/wish/316234562 2018-12-20 17:32:42 UTC https://padlet.com/david_nielsen2023/4k17fqejjgrj/wish/316234562 david_nielsen2023 https://padlet.com/david_nielsen2023/4k17fqejjgrj/wish/316234682 the Cave of the Crystals, Naica, Mexico is a mine in Chihuahua mexico. people can only spend about a few min in it because of the intense heat]]> 2018-12-20 17:33:05 UTC https://padlet.com/david_nielsen2023/4k17fqejjgrj/wish/316234682 david_nielsen2023 https://padlet.com/david_nielsen2023/4k17fqejjgrj/wish/316234942 it is located in Chihuahua mexico]]> 2018-12-20 17:33:54 UTC https://padlet.com/david_nielsen2023/4k17fqejjgrj/wish/316234942 david_nielsen2023 https://padlet.com/david_nielsen2023/4k17fqejjgrj/wish/316235100 when magma underneath the mountain cooled. the anhydrous began to dissolve. The anhydrite slowly enriched the waters with sulfate. which for millions of years have been deposited in the caves in the form of huge selenite gypsum crystals]]> 2018-12-20 17:34:22 UTC https://padlet.com/david_nielsen2023/4k17fqejjgrj/wish/316235100 david_nielsen2023 https://padlet.com/david_nielsen2023/4k17fqejjgrj/wish/316239048  about 26 million years ago]]> 2018-12-20 17:46:24 UTC https://padlet.com/david_nielsen2023/4k17fqejjgrj/wish/316239048