The preparalion of metal oxide CaO from golden snail (Pomacea canaliculata) and lion snail {Babylonia spirata) through decomposition at various temperature i.e 700°, 800°, 900° and 1000°C during 3 hours has been carried out. CaO from decomposition were characterized using X-Ray difractometer. Furthermore, the characterization was continued using FT-IR spectrophotometer and determination of …