SPI Synthetics Group

	Element	%		Oxide	%		periclase
	O	39.70							This is a reflected light micrograph of a synthetic, polished, carbon coated magnesium oxide crystal. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument. This is a good standard for high concentrations of Mg, particularly in oxide or silicate matrices, and also a good oxygen standard. The pure element oxidizes easily, whereas in this form it is extremely stable with a good surface. Source: Atomergic Chemetals Corp. NY, USA
	Mg	60.30		MgO	100.00
	Sum	100.0		Sum	100.0

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Name	Description	SPI #	Each
Magnesium Oxide	SPI SuppliesŪ Individual Mounted Microanalysis Standard Item	AS2140-AB	$199.56