"WardsSci000760"

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

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

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Massive white quartz with a moh's hardness 7.

Shale is a rich, gray fissile clay rock.

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Phyllite is a light-gray foliated rock formed from metamorphosed slate.

Porphyritic igneous rock containing biotite, feldspar, and hornblende.

Pegmatite is igneous rock similar to granite but with larger crystals.

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Pumice is light colored glassy rock that floats in water.

Conglomerate is a sedimentary rock made up rounded quartz pebbles.

Red clastic rock composed of sand sized particles and hematite.

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