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Gray to white metamorphosed carbonate rock.

Fluorite is Green Halide mineral with moh's hardness 4.

Selenite is a Clear gypsum mineral with a moh's hardness of 2.

Pink Gneiss is foliated pink and black bands of biotite.

Calcite is a translucent calcium carbonate mineral, mohs hardness 3.

Gray to tan clastic rock made of silt sized particles.

Red clastic rock composed of sand sized particles and hematite.

Soapstone is a talc-schist primarily composed of talc.

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

A textbook example of pure crystalline carbon which is extermely soft.

Quartzite is hard, non-foliated rock formed from metamorphosed quartz sandstones.

Hornblende is a dark amphibole group mineral, perfect for teaching Bowen's reaction series.

Massive white quartz with a moh's hardness 7.

Bituminous rich black shale for hands-on investigations.

Talc is the softest know mineral with a moh's hardness of 1, and composed of clay.

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