Erbium (Er)

Erbium metal ingot - one troy ounce - .995 bullion   Discovered by the Swedish chemist, Carl Gustaf Mosander in 1843, erbium is one of the 17 rare earth elements. It and the other rare earth elements sit atop the British Geological Survey's Risk List.  It has many industrial uses including in nuclear reactor control rods, as an alloying agent in metallurgy, in fiber optics, infrared lasers, and as a colorant (its oxide is a rose pink color) for glass, porcelain and jewelry.   Inscribed on our ingots are the chemical symbol (Er), purity (99.5%), weight (one troy ounce), and a serial number (this number is unique and will vary). On the reverse is our logo. These ingots are lightly polished, similar to the one pictured. There can be tiny edge dings, scratches, and other tiny imperfections which do not detract from the inherent value of this rare earth metal. Though we've chosen certain rare earth metals that have lesser problems with oxidation, our erbium ingots will still oxidize and t