Presale Tribute to Discoverer of Ruthenium 1.5 inch 38.1mm dia. Ru Metal Coin
$ 1319.48
Description
Material: Ruthenium; Purity: 99.9%; Size: diameter1.5 inch× 3.5mm t hickness ; Surface quality: two sides and cylinder fine ground; Theoretic weight: 49.68grams; Actual weight: 49.71grams(approx.); On the front side: laser engraved Karl Ernst Claus, element discoverer's picture, atomic number, standard atomic weight, density, melting point, boiling point and net weight; On the back side: laser engraved electron configuration per shell, Karl Ernst Claus' s name and the year of discovery; Main uses: element collection, education, gift and so on; LEAD TIME: within 20 days; Please visit our store if you are interested in more element coins engraved discoverer's picture. Thank you. On Mar-04-22 at 03:18:22 PST, seller added the following information:
