*BLACK FRIDAY ONLY* Solid Nickel Polished Density Cube 10mm: BOGO

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Each Nickel cube is solid and of high purity of 99.5%, 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.

Nickel is a chemical element with the symbol Ni and atomic number 28. Here are some interesting facts:

  • It was discovered by Axel Fredrik Cronstedt in 1751.
  • It is a silvery-white lustrous metal with a slight golden tinge.
  • It belongs to the transition metals and is hard and ductile.
  • Meteoric nickel is found in combination with iron, a reflection of the origin of those elements as major end products of supernova nucleosynthesis. An iron-nickel mixture is thought to compose Earth's outer and inner cores.
  • Its use (as a natural meteoric nickel-iron alloy) has been traced as far back as 3500 BCE.
  • The global production of nickel is presently used as follows: 68% in stainless steel; 10% in nonferrous alloys; 9% in electroplating; 7% in alloy steel; 3% in foundries; and 4% in other uses (including batteries).

Each cube comes with an InvisiDisplay™ Case.


  • Size: 10x10x10mm
  • Weight: 8.9g 
  • Sample Purity: 99.5%
  • Surface: Mirror Finish

*Each cube comes with an InvisiDisplay™ Case.

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.

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