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Item #: RM-390 

Price: $2.95

In Stock.

Grow beautiful white Aragonite crystals.

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Item# RM-350 RM-390
Type Class Set of 25 Samples Large Sample
Price $10.95 $2.95
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Product Details

Sometimes called "Popcorn Rocks", these gray Dolomite samples grow dazzling, white Aragonite crystals when placed in a small amount of white vinegar. This experiment is a must for any classroom studying rocks, minerals, crystals, or geology. Each set comes with complete instructions. You simply supply some small plastic bowls and the white vinegar (available at any supermarket). The crystal growing takes approximately one week depending on the temperature and humidity levels in your classroom. You and your students will be amazed!

 

Samples average 2 to 2.5 inches long. Sizes will vary, as this is a natural product.