3 forms of Gypsum vs 4 years of sitting in water I did this to show gypsum does not dissolve immediately if not ever. Water can weaken the structure overtime (as it has started to this year) but it will NOT ‘dissolve.’ Contrary to what these crystal blog posts will regurgitate ALL of your crystals are literally pressure washed before coming to you, dowsed in chemicals to get the iron stains out and then carved/polished under a stream of water. MOHS SCALE OF HARDNESS DOES NOT DETERMINE WATER SOLU

In honor of Miner’s Day, come with us on a tour of the gypsum mine in Sperry, Iowa to see how we process raw gypsum for USG Sheetrock® Brand Drywall and other products! 👷 Thank you to each and every member of our mine and quarry teams across North America for your commitment to excellence and dedication to safety in all you do. USG is honored to have you on our team. #USGBuildIt #Sheetrock Brand #MinersDay #mining #gypsum | USG

Gypsum mine expansion would secure reserves for more than 50 years