| http://www.w3.org/ns/prov#value | - Exemplary inorganic fillers include ceramic, glass, carbon-based inorganic materials such as carbon black, graphite, and carbonoyl iron, cermet, calcium carbonate, aluminum oxide, silicon dioxide, oxides of nickel, cobalt, iron (ferric and ferrous), manganese, and titanium, perlite, talc (hydrous magnesium silicate), mica, kaolinite, nitrides of boron and aluminum, carbides of silicon, boron, and
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