Manganese Lots of lumps
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3D3DLots of lumps.
This is about a pound of lumps similar to the one I got from David Franco (see above). Since I know Franco sends only the very purest of samples, and since these look identical to the one he sent, I feel reasonably confident in assigning them a similar purity. They were obviously created by the same basic process.
Source: eBay seller snooj
Contributor: Theodore Gray
Acquired: 22 August, 2002
Price: $10
Size: 0.75"
Purity: 99.9%