Question: Pearl is composed of minute crystals of which compound?
Answer: E170 (E number); Precipitated calcium carbonate; Calcium Carbonate; Caco3; ATC code A12AA04; CaCo3; Commercial whiting; Kalcipos; OS-Cal; CaCO3; Cac03; Calcium carbonate; ATCvet code QA12AA04; ATCvet code QA02AC01; ATC code A02AC01