What is difference between marcite and gunite?

Marcite and gunite are both materials used for swimming pool surfaces, but they differ in composition and application. Marcite is a type of plaster made from a mixture of cement, marble dust, and water, providing a smooth finish for pools. Gunite, on the other hand, is a dry mix of cement and sand that is sprayed onto a rebar framework, allowing for more versatile shapes and a stronger structure. While marcite offers a traditional look, gunite is often preferred for its durability and flexibility in design.