Precision machined from high purity metal, ground surfaces, and laser etched labels
Size of US Quarter
Approximate weight 0.96g, 99.9% purity
Description
Boron is a chemical element with the symbol B and atomic number 5. Produced entirely by cosmic ray spallation and supernovae and not by stellar nucleosynthesis, it is a low-abundance element in the Solar system and in the Earth's crust.