Search Results for: Crude
. chalk, other than crude . natural calcium phosphates, natural aluminum calcium phosphates and phosphatic chalk, unground . natural calcium phosphates, natural aluminum calcium phosphates and phosphatic chalk, ground . natural barium carbonate (witherite), whether or not calcined . siliceous fossil
meals and similar siliceous earths, whether or not calcined, of an apparent specific gravity of or less . pumice . emery; natural corundum, nat. garnet and other nat. abrasives, whether or not heat‐ treated, all the foregoing crude or in irregular pieces . emery; natural corundum, nat. garnet and other...
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