Limestone, fossiliferous

This raw, gray limestone specimen has a dull gray appearance and slightly chalky feel. Made mostly of calcium carbonate, so it bubbles when in contact with acid.

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This rock collection a student identification pack designed to complement the Washington School Collection, although it's also great to test your identification skills with.

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Large specimen of limestone (6-9") with small fossils inside.

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Hey there, rock hounds! Use this 15-specimen Rock Study Kit for endless hands-on testing and observation. Inside, you'll find number-coded, 1" specimens of igneous, sedimentary, and metamorphic rock.

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This complete mineral kit has number-coded, 1" specimens of 15 important minerals so students can handle, test, and learn all about them. Includes an identification key, a description of each mineral specimen & more!

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Affordable set of 8 good-quality specimens provide exposure to diversity of fossil groups.

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This is an economical collection of 35 mounted and labeled 5/8" specimens.

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Now anyone can be a rock hound.

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Have a geode-breaking party or just enjoy discovering what's inside each one of these natural geodes.

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1-2" gray-white granite specimen.

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