Each Thulium cube is machined with precision to 10x10x10mm (0.39in) for 1 cm3 and highly polished by hand for hours to reach a mirror finish. Laser engraved! This is an heirloom piece that will last forever.
Thulium is a chemical element with the symbol Tm and atomic number 69. Here are some interesting facts:
We used high purity thulium sheets (Tm/TREM: 99.99%, TREM: 99.95%) rolled by vacuum melting to make the cube with a polished finish. The whole process is very difficult, especially the smelting process. The liquid thulium evaporates easily during the smelting process and the thulium vapor will easily volatilize and then pollute the furnace. The thulium vapor will also condense into thulium powder and it spontaneously ignites when it contacts the air after the furnace is opened. We need to be extremely careful during the whole process.
Each cube comes with a display case.
Polar Metals seeks to spice up your life with interesting and unusual metals in unexpected ways. So far, we have brought 25 Elements to you: Silver, Silicon, Germanium, Nickel, Chromium, Zinc, Niobium, Tantalum, Hafnium, Rhenium, Thulium, Lutetium, Scandium, Ruthenium, Platinum, Palladium, Gold, Iridium, Titanium, Cobalt, Copper Aluminum, Carbon, Iron, and Tungsten.
*Note: Please wear gloves when handling. Please store the cube in tightly-closed containers under argon or mineral oil. Store in a cool, dry area. Protect from water/moisture.