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Magic Rocks
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Magic Rocks, 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 Wikipedia: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 Wikipedia:Sheridan, Wyoming by James' son, Rick Ingoldsby.
Magic Rocks were sold in the early 1960's as a souvenir at the Wikipedia:Petrified Forest National Park
The toy was featured in the book "Warman's 101 Greatest Baby Boomer Toys".[1]
Magic Rocks are marketed by NSI International and are available at major retailers like Target, Toys R Us, Meijer Stores, and thousands of craft/Wikipedia:hobby stores, and the internet. The following list details the various salt metals (could be hydrated) used for the different colored crystals:
- white, calcium chloride (mineral, salt, dryer, laundry enhancer)
- white, lead nitrate (lead dye/paint stock, oxidizer, rodenticide)
- red, cobalt chloride (dampness marker, complex)
- orange, iron chloride (dross)
- yellow, iron chloride
- green, nickel nitrate (nickel stock)
- blue, copper sulfate (mineral, copper stock, oxidizer, algicide, fungicide, pesticide)
- purple, manganese chloride
- magenta, manganese chloride, (complex)
References[edit]
- ↑ http://books.google.ca/books?id=xoUW5ToF7u0C&pg=PA186&dq=%22magic+rocks%22&hl=en&sa=X&ei=j4DLUPWXCo2ByAHnv4C4BA&ved=0CD8Q6AEwAg#v=onepage&q=%22magic%20rocks%22&f=false