Natural Minerals Group

From the standards library of SPI Supplies and the C. M. Taylor Company

# AS1100-AB



ElementWt % OxideWt %
O 34.81
S 17.38SO3 43.40
Ca 0.30CaO 0.42
Sr 47.52SrO 56.20

Sum100.0 Sum100.0

Crushed separated crystals

Locality: Madagascar
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.
Click here for a mineralogical account of everything you might want to know about Celestite.

Name Description SPI # Each
Celestite SPI SuppliesŪ Individual Mounted Microanalysis Standard Item AS1100-AB $
Celestite SPI SuppliesŪ Individual Loose Microanalysis Standard Item AS1105-AB $

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