Cadmium Carbonate is a white, odorless crystal or powder. It is a naturally occuring mineral (known as Otavite). Cadmium ... CarbonateCadmium Carbonate is a white, odorless crystal or powder. It is a naturally occuring mineral (known as Otavite), Which ... in acids, KCN,NH, salts.Appearance and Odor : White, amorphous powder, no odor. Cadmium Carbonate