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About Edu-Toys Rock Tumbler
A great set for any junior geologist or anybody who wants to learn how crystals are made This enables you use pointed crystal base to create beautiful acicular (needle-shaped) crystals used to make crystal mobiles and crystalline figures. By using gemstone crystal base (alum), you can conduct an experiment making octahedral crystals Includes 68 page science guide for more information; From the Manufacturer; This crystal making kit enables you use pointed crystal base to create beautiful acicular (needle-shaped) crystals. Use to make crystal mobiles and crystalline figures. By using gemstone crystal base (alum), you can conduct an experiment making octahedral crystals. Science guide included (68 color pages).
