DYOS Tool

Natural Minerals Group

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

# AS1040-AB

Fluorapatite*

Ca5(PO4)3F
ElementWt % OxideWt %
O 38.07
F 3.77F 3.77
P 18.43P2O5 42.22
Ca 39.74CaO 55.60
Sum100.0 Sum101.6
2mm cubes
Polished Apatite in T100-52 mount
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.

* for a mineralogist's account of fluorapatite click here
Name Description SPI # Each
Fluorapatite SPI SuppliesŪ Individual Mounted Microanalysis Standard Item AS1040-AB $199.56
Fluorapatite SPI SuppliesŪ Individual Loose Microanalysis Standard Item AS1045-AB $199.56
   
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Friday March 19, 2010
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