Sandstone is a sedimentary rock composed of quartz grains. This banded sample exhibits bands of red, gray, and buff due to iron oxidation. Sandstone is formed from beach sand-sized quartz grains that are glued together with quartz or calcite. Sandstone is medium-grained and is often associated with underground water and oil storage.
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.