"Metamorphic Rock Specimens"

Pink/grey marble colored metamorphosed carbonate rock.

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

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

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

Sale

Slaty cleavage; contains hematite.

Lustrous, black 'hard coal'.

Dark-green 'verde antique', containing some chlorite and calcite.