SPI Minerals Group

	Element	%		Oxide	%		kaersutite
	H	0.22		H2O	1.97				This is a reflected light micrograph of polished, carbon coated kaersutite crystals. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument. Kaersutite is an amphibole, which allows a wide range of chemical elements to enter its structure. It therefore has many possibilities as a standard. The moderate amounts of potassium, titanium and sodium, for instance, as well as the more abundant silicon, aluminium and calcium. It is named after the type locality, Kaersut, in Greenland. This sample comes from Kangerdlugssuaq in East Greenland.
	O	42.83
	Na	1.81		Na2O	2.44
	Mg	7.57		MgO	12.55
	Al	6.54		Al2O3	12.36
	Si	18.74		SiO2	40.09
	K	0.97		K2O	1.17
	Ca	8.26		CaO	11.56
	Ti	3.02		TiO2	5.04
	Mn	0.14		MnO	0.18
	Fe	9.51		FeO	12.24
	Sum	99.6		Sum	99.6

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Name	Description	SPI #	Each
Kaersutite	SPI SuppliesŪ Individual Mounted Microanalysis Standard Item	AS1200-AB	$199.56