Heavy powder and barite is the same kind of thing
Should be, and the two are barium sulfate.
Barite white or gray, sometimes with blue, pink, yellow or brown, a plate of coarse dense clumps or complete. Can be ground into fine powder, paint, rubber and plastic products, pigments and extenders. No data show that heavy powder and barite is one of the East and the west, is not wrong please write your own judgment.