  Square block.
I still can't get over the fact that calcium is a metal, not a white chalky thing you eat to make your bones strong. This is a solid, squarish chunk of calcium metal, probably cut with some kind of sheers. Max and I got a couple of these to use in filming projects. It is stored under mineral oil, and I photographed it in the open air after just lightly drying it off with a paper towel. Calcium is relatively reactive, and will decompose on contact with water, but it's stable enough to stay shiny with just this minimal coating of oil.
I chose this sample to represent its element in my Photographic Periodic Table Poster. The sample photograph includes text exactly as it appears in the poster, which you are encouraged to buy a copy of.
Source: Max Whitby of RGB
Contributor: Max Whitby of RGB
Acquired: 15 February, 2005
Text Updated: 4 May, 2007
Price: Donated
Size: 1"
Purity: 99.9%
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