4303 metals
4306 minerals
4309 bitumen and tar
4312 bronze
4315 clay
4318 coal
4321 copper
4324 dross
4327 flint
4330 glass
4333 gold
4336 iron
4339 ivory
4342 jewels
4345 metalworkers
4348 mining
4351 refining
4354 rock
4357 salt
4360 sand
4363 silver
4366 stones
4369 sulphur
4372 tin