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CRYSTALS FROM ALUM 1. Boil 2 cups of water in a pan. 2. Add 6 Tablespoons Alum (Aluminum Potassium Sulfate) (Available at Tri-Ess Sciences!) 3. Boil for 3 minutes 4. Cool 5. Pour in a jar with string tied to a pencil. Put a paper clip or a button at the end of the string. If you prefer, you may just put it in a jar without a string. |