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Broken drywall used for calcium?
Drywall is typically made from Gypsum.....Gypsum is a Calcium Sulfate Dihydrate compound Oyster shell is made up of primarily Calcium Carbonate I'm no chemist (flunked it once in college).....but these are definitely 2 different compounds. I'm guessing the Gypsum would not provide the same...- Yard full o' rocks
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- Forum: Feeding & Watering Your Flock