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Phonograph needle.
An example of the element Iridium

Sample Image
Iridium Phonograph needle
Phonograph needle.
Osmium phonograph needles are fairly common, but this is the first iridium one I've seen. Hard metals were used for needles like this so they would last a long time playing abrasive records.
Source: eBay seller harrymarks
Contributor: Theodore Gray
Acquired: 29 September, 2003
Price: $5
Size: 0.5"
Purity: <50%
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