SPI Minerals Group

	Element	%		Oxide	%		celestite
	O	34.81							This is a reflected light micrograph of polished, carbon coated celestite crystals. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument. Celestite has several cleavages which accounts for the pitted surface on some of the crystals. This is the standard for strontium and can also be used for sulfate sulfur. The name is derived from the celestial blue color of some crystals. Locality: Madagascar
	S	17.38		SO3	43.40
	Ca	0.30		CaO	0.42
	Sr	47.52		SrO	56.20
	Sum	100.0		Sum	100.0

Go to: Previous item on list: Calcite Next item on list: Chlorite

Name	Description	SPI #	Each
Celestite	SPI SuppliesŪ Individual Mounted Microanalysis Standard Item	AS1100-AB	$199.56