Gadolinium Clippings
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3D3DClippings.
This looks like clipping from some kind of crude, thick foil. They need to be stored under oil to avoid oxidation.

Click the source link for an interesting story about where this sample came from.

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.
Periodic Table Poster

Source: Tryggvi Emilsson and Timothy Brumleve
Contributor: Tryggvi Emilsson and Timothy Brumleve
Acquired: 6 September, 2002
Text Updated: 4 May, 2007
Price: Donated
Size: 0.2"
Purity: >99%
Gadolinium