Bituminous Coal is a plant-based sedimentary rock. This coal is solid black and shiny with no visible grains. Coal forms from plant material.
An information card with details on the rock formation, mineral content, characteristics, and uses is included. Typical samples sizes are generally 1-2 inches in length or width but can vary based on availability and natural formation.
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 years.
May have sharp edges.