Mother-of-pearl vs. Opal, What is the Difference?

After reading the Mother-of-pearl vs. Opal article, you will know what is the difference between the Mother-of-pearl and Opal. Mother-of-pearl vs. Opal, What is Mother-of-Pearl? Nacre, or Mother-of-Pearl, is a mixture of organic and inorganic materials produced by mollusks as the inner layer of the animal’s shell; It is also the material that makes up […]