What is the main impurity in haematite? by Sunday | May 12 | Chemistry WAEC | 0 comments A. CaSiO3 B. CaCO3 C. SiO3 D. Fe2O3 Correct Answer: Option C C. SiO3 Users Also Read These:The presence of an impurity in substance will cause…What is the main message of the story about the hunter?When a pentavalent impurity is added to a pure… The chemical weathering that is responsible for…CHM 311 Questions Structural And Main Group Chemistry