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This comprehensive collection of rocks from North America includes 100 number-coded specimens packaged in two cardboard storage boxes with a compartmented trays. The specimens include 30 igneous rocks, 40 sedimentary rocks and 30 metamorphic rocks. These North American rock specimens are about 1" x 1".
This collection demonstrates the great diversity of rocks in North America, including some unique specimens like volcanic ash from Mount St. Helens and jasper conglomerate. Avid rock hounds will love this set!
WARNING: CHOKING HAZARD - Small parts. Not for children under 3 yrs.
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