Section 05 MINERAL PRODUCTS 25 SALT;SULPHUR;EARTHS AND STONE;PLASTERING MINERALS, LIME AND CEMENT 25 10 NATURAL CALCIUM PHOSPHATES, NATURAL ALUMINIUM CALCIUM PHOSPHATES AND Commodity Code Description 25 10 10 UNGROUND NATURAL CALCIUM PHOSPHATES, ETC. 25 10 20 GROUND NATURAL CALCIUM PHOSPHATES, ETC.