The Cueva de los Cristales is home to the largest natural mineral crystals ever found. The crystals are made of gypsum (hydrated CaSO4) that precipitated out of groundwater over hundreds of thousands of... continue reading
posted by gluonium 1 decade 7 years 4 months 1 week ago • 4,208 viewsRyjkyj's Personal Sift Tour
Created: 1 decade 5 years 9 months 2 weeks ago
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Updated: 1 decade 5 years 1 month ago
Views: 3,677
Not everything I love is here yet but it's a good start.