Fuller’s earth: Major producers of fuller’s earth are the United States (attapulgite, smectite), Spain (attapulgite, sepiolite), and Senegal (attapulgite).    From Wordnik.com.  [Clay] Reference

Also called sepiolite.    From Wordnik.com.  [The Handy Cyclopedia of Things Worth Knowing A Manual of Ready Reference] Reference

Spaincoal, lignite, iron ore, copper, lead, zinc, uranium, tungsten, mercury, pyrites, magnesite, fluorspar, gypsum, sepiolite, kaolin, potash, hydropower, arable land.    From Wordnik.com.  [Natural resources] Reference

Spain coal, lignite, iron ore, copper, lead, zinc, uranium, tungsten, mercury, pyrites, magnesite, fluorspar, gypsum, sepiolite, kaolin, potash, hydropower, arable land.    From Wordnik.com.  [The 2004 CIA World Factbook] Reference

Natural resources: coal, lignite, iron ore, copper, lead, zinc, uranium, tungsten, mercury, pyrites, magnesite, fluorspar, gypsum, sepiolite, kaolin, potash, hydropower, arable land.    From Wordnik.com.  [The 2004 CIA World Factbook] Reference

Alright the list is: coal, lignite, iron ore, copper, lead, zinc, uranium, tungsten, mercury, pyrites, magnesite, fluorspar, gypsum, sepiolite, kaolin, potash, hydropower, arable land.    From Wordnik.com.  [Yahoo! Answers: Latest Questions] Reference

Moh's scale and humidity less than 6 percent such as kaolin, limestone, calcite, marble, talcum, barite, gypsum, dolomite, bentonite mud, mica, pyrophyllite, sepiolite, diatomite, graphite, alunite, fluorite, potassium feldspar, phosphorite, pigment and so on.    From Wordnik.com.  [All Kinds of Rocks, Fossils & Minerals] Reference