| Os | 99.999 | | | |
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This is a reflected light micrograph of polished, carbon coated osmium. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument.
Osmium is not normally available in a form suitable for mounting and polishing, but we have developed a technique which solves this problem.
Source: lump- #10669, Alfa Aesar, MA, USA
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