Cobalt is a chemical element with the symbol Co and atomic number 27. Cobalt-based blue pigments (cobalt blue) have been used since ancient times for jewelry and paints, and to impart a distinctive blue tint to glass, but the color was later thought to be due to the known metal bismuth.
Handmade wall decor canvas with a design that will stand the test of time.
Get Cobalt-Oxygen-Potassium to CoOK up some magic!