Best Answer: Along with hundreds of other common foods and household items, they contain the aquatic plants known as seaweed. These are cheese and chocolate milk, peanut butter and pudding, frozen desserts and fruit drinks. Product Containing Algae !
Erbium is never found in nature as the free element. Erbium is found in the ores monazite sand [(Ce, La, etc.)PO 4 ] and bastnÂ°site [(Ce, La, etc.)(CO 3)F], ores containing small amounts of all the rare earth metals. It is difficult to separate from other rare earth elements.
Terbium is classified as a rare earth element. The term is misleading because terbium is more common than metals such as silver and mercury. The name rare earth meant something else to early chemists. It was used because the rare earth elements were very difficult to separate from each other.