What is bone black ?
“bone black” is solid black material, largely carbon, produced by heating animal bones to high temperatures in the absence of air so as to drive off volatile substances.
bone black
Read related post at What is bone black ?.
“bone black” is solid black material, largely carbon, produced by heating animal bones to high temperatures in the absence of air so as to drive off volatile substances.
bone black
Read related post at What is bone black ?.