SPI Minerals Group

	Element	%		Oxide	%		fluorapatite
	O	38.07							This is a reflected light micrograph of polished, carbon coated apatite crystals. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument. Not only can this be used as a standard for phosphorus, but the significant amount of fluorine can be detected with most modern X-ray spectrometers. Var:Fluor-apatite; Ontario, Canada
	F	3.77		F	3.77
	P	18.43		P2O5	42.22
	Ca	39.74		CaO	55.60
	Sum	100.0		Sum	101.6

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Name	Description	SPI #	Each
Fluorapatite	SPI SuppliesŪ Individual Mounted Microanalysis Standard Item	AS1040-AB	$199.56