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Curium does not occur in nature, but it can be created in nuclear reactors and it has a few industrial applications. It is extremely radioactive, extremely toxic, and extremely hard to get.
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Sample from the Everest Set.
Up until the early 1990's a company in Russia sold a periodic table collection with element samples. At some point their American distributor sold off the remaining stock to a man who is now selling them on eBay. The samples (except gasses) weigh about 0.25 grams each, and the whole set comes in a very nice wooden box with a printed periodic table in the lid.
Radioactive elements like this one are represented in this particular set by a non-radioactive dummy powder, which doesn't look anything like the real element. (In this case a sample of the pure element isn't really practical anyway.)
To learn more about the set you can visit my page about element collecting for a general description and information about how to buy one, or you can see photographs of all the samples from the set displayed on my website in a periodic table layout or with bigger pictures in numerical order.
Source: Rob Accurso
Contributor: Rob Accurso
Acquired: 7 February, 2003
Price: Donated
Size: 0.2"
Purity: 0%
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Poster sample.
This photograph of Marie Curie appears in my Photographic Periodic Table Poster representing curium, which is named after her. This highly unstable element can't reasonably be photographed, and a picture of its namesake seemed like a reasonable alternative. The sample photograph includes text exactly as it appears in the poster, which you are encouraged to buy a copy of.
This photo is Copyright (c) The Nobel Foundation, used with permission.
Source: Max Whitby of RGB
Contributor: Max Whitby of RGB
Acquired: 15 April, 2006
Price: Donated
Size: 6"
Purity: 0%
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  Marie Curie commemorative medal.
A brass or copper commemorative medal issued in 1967 to honor the 100th anniversary of the birth of Marie Curie, who discovered radium, and after whom curium is named.
Source: eBay seller mrherola
Contributor: Theodore Gray
Acquired: 23 December, 2007
Price: $40
Size: 2.75"
Purity: 0%
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