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3D3DEncrusted ferrochrome crystal.
This ferrochrome lump came along with some much larger ones (see listings), and it's interesting because on the back side (click one of the rotation links to see it from all sides) it's heavily encrusted with some kind of green material. My guess is that it's chromium oxide, which is green, how it got there I don't know.
Source: mrx
Contributor: mrx
Acquired: 15 July, 2005
Text Updated: 20 June, 2007
Price: Trade
Size: 4"
Composition: FeCr