Ingredients: White Eggs Alum Powder White School Glue (PVA) Boiling Water Purple Gel Food Coloring (or Red Blue) Paintbrush Instructions: Prepare the Shell: Crack the egg near the top (for a deep geode) or lengthwise. Wash the inside and carefully peel out the thin inner membrane (this is crucial-if you leave it, the crystals might peel off later). Dry completely. ​ Seed the Shell (The Secret Step): Paint the entire inside of the shell with white glue. Sprinkle a heavy coating of Alum powder ove
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Ingredients: White Eggs Alum Powder White School Glue (PVA) Boiling Water Purple Gel Food Coloring (or Red Blue) Paintbrush Instructions: Prepare the Shell: Crack the egg near the top (for a deep geode) or lengthwise. Wash the inside and carefully peel out the thin inner membrane (this is crucial-if you leave it, the crystals might peel off later). Dry completely. ​ Seed the Shell (The Secret Step): Paint the entire inside of the shell with white glue. Sprinkle a heavy coating of Alum powder ove
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