, also sometimes referred to or marketed as Crystal Gardens or Chemical Gardens, are a novelty item for creating rock-like formations. A typical package of Magic Rocks contains an envelope of liquid sodium silicate and a small handful of colored "rocks" that are actually chunks of water soluble metallic salts. Some kits come with figurines to give the crystal garden a more exotic look. The "rocks" are placed into the liquid sodium silicate solution, and within several hours colorful crystal towers form. They were invented by two brothers named James and Arthur Ingoldbsy, in the Los Angeles area in 1940. Currently, Magic Rocks are being manufactured in Sheridan, Wyoming by James' son, Rick Ingoldsby.
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