Sandstone consists of sand-sized quartz particles that compress or cement together to form a sedimentary rock that is often yellow, orange, white. Other colors of the rock are possible, depending on the accessory minerals present in the rock. Sandstone forms worldwide and is a popular building material. Sandstone aquifers with open spaces between the grains are good layers for the underground storage of water, natural gas and oil.
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.