what color is bismuth oxide
Bismuth crystals can have a thin layer of bismuth(III) oxide on the outside that is very colorful. Bismuth is a silver metal with a pink tinge to it. This pink color is because of its oxide coating. Bismuth is a post-transition metal. It is one of the strongest diamagnetic metals. It is almost as heavy as lead. Its melting point is quite low 271.5 Â°C (520.7 Â°F), which is normal for post-transition metals.