1. Sources
  2. OECD International Trade
  3. International Trade By Commodity Statistics (SITC Rev. 2)
  4. 2: Crude materials, inedible, except fuels
  5. 27: Crude fertilizers and crude materials (excluding coal)
  6. 278: Other crude minerals
  7. 2785: Uartz, mica, felspar, fluorspar, cryolithe & chiolithe
  8. 27851: Quartz, quartzite only roughly worked

27851: Quartz, quartzite only roughly worked

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