What Makes up Oolite?

Oolite is a type of sedimentary rock, usually limestone, made up of ooids cemented together. An ooid is a small spherical grain that forms when a particle of sand or other nucleus is coated with concentric layers of calcite or other minerals. Ooids most often form in shallow, wave-agitated marine water.

What is a limestone made of?

Limestones are made up largely of calcite (calcium carbonate) as their main mineral. Limestones fizz when a drop of dilute hydrochloric acid is placed on them. Uses of Limestone.

What minerals are in Oolitic limestone?

Rocks made up of pisoids is pisolite. Ooids are most commonly composed of calcium carbonate (calcite or aragonite), but can be composed of phosphate, chert, dolomite or iron minerals, including hematite. Dolomitic and chert ooids are most likely the result of the replacement of the original texture in limestone.