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Limestone is a gray calcium carbonate that will fizz with dilute HCl.

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Bituminous rich black shale for hands-on investigations.

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Gray to tan clastic rock made of silt sized particles.

Gabbro is Mafic igneous rock formed deep underground consisting of olivine and pyroxene.

Anorthosite is an intrusive, igneous rock consisting of predominantly plagioclase feldspar.

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Introduce your students to rocks formed metamorphism of other rocks.

Scoria is a dark-colored rock formed from lava with a high gas content.

Green colored rock formed from the metamorphism of ultramafic mantle rocks.

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Introduce your students to rocks formed from deposition of sediment.

Introduce your students to rocks formed from the cooling of magma and lava.