SPI Synthetics Group

	Element	%		Oxide	%		cubic_zirconia
	O	24.91							This is a reflected light micrograph of polished, carbon coated cubic zirconia crystals. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument. Cubic zirconia is used in jewelry as a diamond look-alike. To form the perfect crystals the zirconium oxide has to be stabilized by the addition of yttrium oxide. Hafnium is also present as the ubiquitous impurity in zirconium.
	Y	14.37		Y2O3	18.25
	Zr	59.17		ZrO2	79.93
	Hf	1.51		HfO2	1.78
	Sum	100.0		Sum	100.0

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Name	Description	SPI #	Each
Zirconium Oxide	SPI SuppliesŪ Individual Mounted Microanalysis Standard Item	AS2230-AB	$199.56