25252000

 Mica powder

25253000

 Mica waste

2526

Natural steatite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; talc.

25261000

 Not crushed, not powdered

252620

 Crushed or powdered:

25262010

Talc powder

25262090

Other

25280000

Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85% of H3B03 calculated on the dry weight.

2529

Feldspar; leucite; nepheline and nepheline syenite; fluorspar.

25291000

 Feldspar

25292100

Fluorspar: ' Containing by weight 97% or less of calcium fluoride

25292200

Fluorspar: Containing by weight more than 97% of calcium fluoride