| High-purity calcium nodules. | |||
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| High-purity calcium nodules. Nodules of very high-purity, completely un-oxidized calcium metal in an argon-filled ampule. Source: Anonymous Contributor: Anonymous Acquired: 31 October, 2009 Text Updated: 31 October, 2009 Price: Donated Size: 3" Purity: >99.9% | |||
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