Harmonized System

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Section V > Chapter 25 > Heading 2529 > 2529.2

Fluorspar 

Section V > Chapter 25 > Heading 2529 > 2529.2 > 2529.21

Containing by weight 97 % or less of calcium fluoride

Section V > Chapter 25 > Heading 2529 > 2529.2 > 2529.22

Containing by weight more than 97 % of calcium fluoride

Section V > Chapter 25 > Heading 2529 > 2529.30

Leucite; nepheline and nepheline syenite

Section V > Chapter 25 > Heading 2530

Mineral substances not elsewhere specified or included.

Section V > Chapter 25 > Heading 2530 > 2530.10

Vermiculite, perlite and chlorites, unexpanded

Section V > Chapter 25 > Heading 2530 > 2530.20

Kieserite, epsomite (natural magnesium sulphates)

Section V > Chapter 26

Ores, slag and ash