| Y | 99.90 | | | |
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This is a reflected light micrograph of polished, carbon coated Yttrium. The identifying etched label, which is a feature
of our standards, is invaluable for navigating in an electron beam instrument. This micrograph was taken prior to labelling, so labels are not present
Source: lump- Y-104, ROC/RIC, Sun Valley, CA, USA
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