Introduction - National Park Service

Crystal Garden: pie tin, pieces of charcoal, ½ cup water, ½ cup salt, ½ cup liquid bluing, 1 cup ammonia, food coloring (do not use red), mixing bowl, spoon. Key Vocabulary. speleothem, crystal. Background. Speleothem is the name given to any secondary deposit (decoration) inside of a cave. The ones which hang from the cave ceiling are ... ................
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