Mineral Identification
http://geology.com/minerals/mineral-identification.shtml
Magic Salt Crystal Garden:
For generations, bluing has been known as an essential ingredient of a "Salt Crystal Garden". This delightful crystalline formation became popular in the Great Depression, and is still known to some as a "Depression Flower" or "Coal Garden". By combining common ingredients (salt, water, bluing, food coloring and ammonia) over a porous base material (Coal, sponge, or other), the salt recrystallizes into beautiful, delicate coral-like formations. Children growing one of their own have been winning blue ribbons in science fairs ever since! Elementary teachers find it invaluable in teaching their students about crystals. We have offered the recipe free to individuals, schools, and scout troops for decades! Magic Salt Crystal Garden Recipe.
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