Crystal garden

Ingredients

 * 6 tbsp Salt
 * 6 tbsp Bluing -- liquid
 * 6 tbsp Water
 * 1 tbsp Ammonia
 * Food coloring

Directions
1 Combine salt, bluing, water and ammonia. 2 Pour over small pieces of rock or coal in a shallow glass or china bowl. 3 Drip food coloring on top, if desired. 4 Crystals will begin to grow soon. 5 Add water occasionally to keep crystals growing. 6 You"ll probably want to supervise pretty closely... 7 Courtesy of kay crowley