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Section V > Chapitre 25 > Position 2528
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 H3BO3 calculated on the dry weight.
Section V > Chapitre 25 > Position 2528 > 2528.00
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 H3BO3 calculated on the dry weight
Section V > Chapitre 25 > Position 2529
Feldspar; leucite, nepheline and nepheline syenite; fluorspar.
Section V > Chapitre 25 > Position 2529 > 2529.2 > 2529.21
Containing by weight 97 % or less of calcium fluoride
Section V > Chapitre 25 > Position 2529 > 2529.2 > 2529.22
Containing by weight more than 97 % of calcium fluoride
Section V > Chapitre 25 > Position 2529 > 2529.30
Leucite; nepheline and nepheline syenite
Section V > Chapitre 25 > Position 2530
Mineral substances not elsewhere specified or included.
Section V > Chapitre 25 > Position 2530 > 2530.10
Vermiculite, perlite and chlorites, unexpanded