Pay Tribute to Zirconium Discoverer 1.5 inch Diameter Pure Zr Metal Coin

Description

Material: Zirconium metal;
Purity: 99.5%;
Size: diameter1.5inch×t
hickness3.5mm;
Surface quality: two sides and cylinder fine ground;
Theoretic weight: 25.9grams;
Actual weight: 26.5grams(0.85troy oz);
On the front side: marked Martin Heinrich Klaproth, the discoverer's picture, atomic number, standard atomic weight, density, melting point, boiling point and net weight.
On the back side: marked electron configuration per shell, Martin Heinrich Klaproth's name and the year of discovery;
Main uses: element collection, education, gift and so on.
Please visit our store if you are interested in more element coins marked discoverer's picture.
Thank you.