| http://www.w3.org/ns/prov#value | - Examples of the powder include extender pigments such as talc, sericite, mica, kaolin, magnesium carbonate, calcium carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, a tungstic acid metal salt, magnesium, silica, zeolite, barium sulfate, calcined calcium sulfate, calcium phosphate, fluorine-apatite, hydroxyapatite, metallic soaps, boron nitrid
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