I used Sterling silver and copper in my artwork. My techniques include tufa/sand/ingot casting, designing, stamping, sawing, filing, soldering, and finishing. I use an acetylene torch, crucible, tufa stone, sand casting flask with casting sand, Steel ingot mold, assorted stamps/files, jewelers saw/rolling mill, assorted grit sandpaper, rotary tool, pickle acid, jewelers solder flux, and polishing buffer with white, red, green, yellow buffing compounds.