1.7%~11% C and 80%Calcium phosphate and other inorganic salt 2.White piece appearance 3.Widely used for bone china Product: Bone charcoal1. Description:Bone Charcoal, also called Bone Black, or Bone Char, which is a kind of amorphous carbon, white and lump. It is rich in 7%-11% of carbon, 80% of calcium phosphate and other inorganic salt. It is hardly soluble in water. Bone charcoal is carbonized ...