SPI Minerals Group

	Element	%		Oxide	%		olivine
	O	43.89							This is a reflected light micrograph of polished, carbon coated olivine crystals. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument. Olivine is a silicate which is formed early in the crystallization of a magma, containing major amounts of magnesium and relatively large amounts of nickel, which is not normally found in silicates. The olivine series of minerals ranges from the magnesian end member, forsterite, to the iron end member, fayalite. This is an example contains about 92% of the forsterite end member. It is highly stable, with good surface properties. Locality unknown
	Mg	30.42		MgO	50.45
	Si	19.44		SiO2	41.59
	Mn	0.08		MnO	0.10
	Fe	5.87		FeO	7.55
	Ni	0.30		NiO	0.38
	Sum	100.0		Sum	100.1

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Name	Description	SPI #	Each
Olivine	SPI SuppliesŪ Individual Mounted Microanalysis Standard Item	AS1260-AB	$199.56