Rocks & Minerals

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16788

An economy collection of 6 commonly known igneous rocks. Igneous rocks are formed by the cooling of molten rock, either magma or lava. Each generous specimen is 1 1/4" to 1 1/5" and is contained in a resealable zip lock bag with a label. Grades 5-12. Ages 10-18.

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$2.70 Each $5.50 Each

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Thames and Kosmos Crystal Creation Kit

17010

Crystals are fascinating creations of natural beauty. Diamonds, gemstones, rose quartz, snowflakes, sugar grains, and table salt are all crystals. Grow your own crystals and explore these exquisitely ordered structures in a fun, creative way with six crafty experiments. This kit includes five different chemicals and other tools for growing crystals. Grow a crystal cloud inside a rainbow. Watch pink iridescent crystals form from a translucent solution. Grow long needle-shaped crystals. Mold plaster hearts and flowers and then grow a layer of pink crystals on them. Create the perfect solution to get crystals to form on a granite rock. A specially designed experiment station provides molds and growing basins for your crystal creations. After you have grown your crystals, store them safely in three clear, locking display boxes. Learn how and why crystals form, and tips and tricks for getting the biggest, most beautiful crystals. Full-color, 16-page experiment manual.

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$7.40 Each $14.95 Each

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The U.S. Mounted Rocks and Minerals Intro Collection (Pack of 15)

16816

Excellent reference collections and a valuable aid in identifying and comparing common and rare rocks and minerals. These mounted collections display common minerals and igneous, sedimentary and metamorphic rocks. Specimens are 1/2"-1". Rocks and Minerals Study Guide included. Grades 5-12. Ages 10-18.

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$5 Each $10.00 Each

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Thames and Kosmos Crystal Garden Kit

17015

Grow a marvelous crystal garden with these fast-growing crystals. The centers of four flower cards bloom into delicate crystal structures in just a few hours. You can practically see the crystals form before your eyes on the branches of filter-paper trees. Learn about how and why crystals form, and experiment with different colored flowers.

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$7.40 Each $14.95 Each

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Minerals In Our Food Collection

16800

From calcium to zinc, explore some of the many types of minerals that are used in common foods, vitamins, food processing and preserving. Six numbered specimens approximately 1.5" x 1.5" show the importance of our use of minerals for daily nutrition. Grades 5-12. Ages 10-18.

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$7.90 Each $15.95 Each

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