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Bar of 99.99% tungsten.
An example of the element Tungsten

Sample Image
Tungsten Bar of 99.99% tungsten
Bar of 99.99% tungsten.
Ivan Petrov (see above cylinder sample discussion) kindly donated a couple of very pure metal samples, including this lovely machined bar of "four nines" tungsten. It looks like powder metallurgy origin to me, but he didn't know for sure.
When NPR's Science Friday program asked to interview me about the Periodic Table Table, I decided to record "the sound of sintered tungsten", as mentioned in Uncle Tungsten. Oliver Sacks has actually listened to this recording and confirms that it's the kind of sound his uncle was talking about. (Wow, how authentic can you get!) Click the speaker icon to hear the sound of tapping this bar with a mallet.
Source: Ivan Petrov
Contributor: Ivan Petrov
Acquired: 6 June, 2002
Text Updated: 11 August, 2007
Price: Donated
Size: 4"
Purity: 99.99%
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