SPI Metals Group

	Element	%					selenium
	Se	99.999							This is a reflected light micrograph of polished, carbon coated selenium. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument. Selenium is brittle and fractures during polishing, often breaking away at the edges of a grain, as in this case. Fortunately sufficient remains in the center. Source: pieces- #10666A, Alfa Aesar, MA, USA

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Name	Description	SPI #	Each
Selenium	SPI SuppliesŪ Individual Mounted Microanalysis Standard Item	AS0180-AB	$199.56