"WardsSci000756"

Breccia is a sedimentary rock made up of angular rock fragments.

Gray to white metamorphosed carbonate rock.

Pink/grey marble colored metamorphosed carbonate rock.

Obsidian is hard black colored, volcanic glass.

Gray to tan clastic rock made of silt sized particles.

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

Gray metamorphosed shale showing "slaty cleavage".

Chert is a microcrystalline, hard, silica mineral.

Muscovite is a mica mineral cut to demonstrate basal cleavage.

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