Elemental metallic 1 cm elemental cubes These highly polished cubes are great educational tools Story Each cube is highly polished by hand and laser engraved with its periodic info. Size: 10x10x10mm Weight: 16.6g Sample Purity: 99.95% Surface: Mirror Finish Each Tantalum cube is solid and of high purity of 99.95%, highly polished by hand for many hours to reach a mirror finish, and laser engraved with its periodic info. This is an heirloom piece that will last forever. Tantalum is a chemical element with the symbol Ta and atomic number 73. Here are some interesting facts: It was discovered by Anders Gustaf Ekeberg in 1802. It is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. It is one of the refractory metals (highly resistant to heat and wear). Its melting point (5463 °F) is exceeded only by tungsten and rhenium. The chemical inertness of tantalum makes it a valuable substance for laboratory equipment, and as a substitute for platinum. Its name was derived from the name of the mythological Tantalus, the father of Niobe in Greek mythology. Tantalum and Niobium are nearly always found together in nature, according to the U.S. Geological Survey (USGS). They are interesting "indispensable twins". Polar Metals seeks to spice up your life with interesting and unusual metals in unexpected ways. The elements on the periodic table are everywhere, in fact, they make up everything! So far, we have brought 29 Elements to you: Silver, Silicon, Germanium, Nickel, Chromium, Zinc, Niobium, Tantalum, Hafnium, Rhenium, Thulium, Lutetium, Scandium, Ruthenium, Platinum, Palladium, Gold, Iridium, Osmium, Titanium, Cobalt, Magnesium, Zirconium, Molybdenum, Copper, Aluminum, Carbon, Iron and Tungsten. *Note: Please wear gloves when handling.
