2530 Vermiculite, Perlite and Other Mineral Substances, N.e.s.

2530 (01/1988-..) Vermiculite, Perlite and Other Mineral Substances, N.e.s. 25301000 (01/2010-..) Vermiculite, Perlite and Chlorites, Unexpanded 25301010 (01/1994-12/2009) Perlite, Unexpanded 25301090 (01/1994-12/2009) Vermiculite and Chlorites, Unexpanded 25302000 (01/1988-..) Kieserite and Epsomite `natural Magnesium Sulphates` 25303000 (01/1988-12/1995) Earth Colours 25304000 (01/1988-12/2001) Natural Micaceous Iron Oxides 25309000 (01/2010-..) Arsenic Sulfides, Alunite, Pozzuolana, Earth Colours and Other Mineral Substances, N.e.s. 25309010 (01/1994-12/1994) Meerschaum, Whether or not in Polished Pieces 25309020 (01/1995-12/2009) Sepiolite, Natural or Recycled 25309080 (01/1995-12/1995) Arsenic Sulphide, Alunite, Pozzuolana and Other Mineral Substances, N.e.s. 25309090 (01/1994-12/1994) Arsenic Sulfides, Alunite, Pozzolana and Other Mineral Substances N.e.s. 25309095 (01/1996-12/2001) Arsenic Sulphide, Alunite, Pozzuolana and Other Mineral Substances, N.e.s. 25309098 (01/2002-12/2009) Arsenic Sulphide, Alunite, Pozzuolana and Other Mineral Substances, N.e.s.