Small Geode Pairs, Rocks & Minerals: Educational Innovations, Inc.
Geodes are natural wonders that have taken thousands of years to form. A rock cavity, like a gas bubble in a lava flow, slowly fills with water, which deposits its dissolved minerals. They eventually crystallize into a unique form and color. Deposits of iron and manganese are especially colorful. Each of our beautiful 1" to 2" (2.5 cm to 5.0 cm) geodes has been cut open and polished. Collected in Brazil, each is unique and has a void filled with sparkling crystals. Great for gifts for that special student or colleague! Sold in matched sets of two halves. (Note: Even a single half would be appreciated as a gift.)
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IQCrew's Early Explorer Series helps young children develop an early appetite for science by providing easy-to-use microscopes and accessories that
Natural Geode Exploration Kit – Break Open and Discover Your Own Crystal Treasure
Super Geodes - Set of 10
Use the Thames & Kosmos Crystal Growing kit to try out four types of crystals, each with unique properties. These include potassium alum crystals that form regular shapes, fast-growing sodium sulfate crystals, long needle-shaped sodium acetate crystals, and plaster made from gypsum crystals. Create fun plaster shapes like stars, lightning bolts, dolphins, and pyramids. You can grow crystal layers on these shapes too. Make colored crystals with dyes and mix dyes to grow a variety of colors.
Thames & Kosmos Crystal Growing Kit in Multi
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Small Geode Pairs, Rocks & Minerals: Educational Innovations, Inc.
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Small Geode Pair. (Weight: 2.2 oz.).
Small geode pair (2.2 oz.)
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