Calcite and Oriental alabaster

Calcite noun - A common mineral consisting of crystallized calcium carbonate; a major constituent of limestone.

Oriental alabaster and calcite are semantically related. In some cases you can replace phrase "Oriental alabaster" with "Calcite", this terms are similar.

Oriental alabaster noun - A hard compact kind of calcite.

Calcite and oriental alabaster are semantically related. You can use "Calcite" instead a noun phrase "Oriental alabaster".