Cobalt (Co) 24.26mm Metal Disc 99.95% Pure for Collection or Experiments
Cobalt (Co) 24.26mm Metal Disc 99.95% Pure for Collection or Experiments
Cobalt is a chemical element with symbol Co and atomic number 27. Like nickel, cobalt is found in the Earth's crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. -Wikipedia Quarter not included
Product Features
- One Disc, measures 24.26 mm x 1.75 mm
- Precision machined from high purity metal, ground surfaces, and laser etched labels
- Size of US Quarter
- Approximate weight 7.28g