Contributed by the site creator
1 inch cube of Tungsten. Tungsten cubes are popular novelty gifts because of Tungsten's high density and weight, but most cubes you can buy online are only 95% purity. This cube is roughly 99.95% purity. Tungsten is not the densest metal though! That honor goes to Osmium , which is about 17% more dense than Tungsten .
Contributed by collector no. 4
Chromium group: Chromium chunks, tarnished Molybdenum chunks, and Tungsten chunks in bottles
Contributed by collector no. 3
The Chromium metal group: Chromium , Molybdenum , and Tungsten
Two chunks of dark Tungsten metal
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