| http://www.w3.org/ns/prov#value | - Suitable particulate material includes inorganic particles such as silicas, chalk, calcium carbonate, magnesium carbonate, kaolin, calcined clay, pyrophylite, bentonite, zeolite, talc, synthetic aluminum and calcium silicates, diatomatious earth, anhydrous silicic acid powder, aluminum hydroxide, barite, barium sulfate, gypsum, calcium sulfate, and the like; and organic particles such as polymeric
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