Calcium Metal Cube 99.5%

Calcium.JPG
Calcium.JPG

Calcium Metal Cube 99.5%

from 99.00

Calcium is a very unusual metal to be formed into density cubes – or anything at all for that matter. In fact, to our knowledge these cubes are the first time pure calcium has been made into a commercial product. 

There are several good reasons for this. Calcium is not stable in air and will oxidize into a powdery mess if left out. It also happens to be quite soft so even in the vacuum of space, where a freestanding piece of calcium would at least be safe from degradation, it would be useless all the same as it can barely hold its shape under its own weight.

Calcium, like most other metals, is a colorless shade of gray. These cubes are very nearly pitch black from oxidation that occurs at the point of manufacture with heated tool tips instantly charring the surface as it slices through the metal. We think they look absolutely beautiful as they are. Although they can be safely handled (and fulfill their use as a density reference) to keep them looking this attractive they should be stored under mineral oil immediately afterwards. Each 10mm cube weighs an astonishingly light 1.59±0.02 grams which is comparable to a wad of paper of the same size... almost insubstantial, yet a piece of real metal!

They ship oiled and vacuum packed. Larger sizes available as custom orders. 

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