Section 05 Mineral products 25 Salt, sulphur; earths and stone; plastering materials, lirne and cement 25 10 Natural calcium phosphates, natural aluminium calcium phosphates and phosphatic chalk 25 10 10 Unground natural calcium phosphates, aluminium calcium phosphates, etc Commodity Code Description 25 10 10 00 Unground natural calcium phosphates, aluminium calcium phosphates, etc 25 10 10 10 Apatite 25 10 10 90 Other