Synthetic Compounds Group

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

# AS2050-AB

Calcium Fluoride


ElementWt % HalideWt %
F 48.67
Ca 51.33CaF2 100.00

Sum100.0 Sum100.0

Polished CaF2 in 02753-AB mount
This is a reflected light micrograph of a polished, carbon coated synthetic fluorite crystal. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument. Of course, fluorine, being a very light element, emits only low energy X-rays which are easily absorbed, hence the need for a standard with plenty of F. Quantitative analysis of fluorine is particularly difficult, as documented by Ottolini et al. (2000) Amer. Min. 85, 89-107. Fluorite has four good octahedral cleavages which results in polished surfaces often having a pitted appearance where the cleavages come together in a re-entrant. This mineral gives its name to the element fluorine, and itself is named from the Latin fluere - to flow - in allusion to easy melting when used as a flux in the smelting of metals.

Name Description SPI # Each
Calcium Fluoride SPI Supplies® Individual Mounted Microanalysis Standard Item AS2050-AB $
Calcium Fluoride SPI Supplies® Individual Loose Microanalysis Standard Item AS2055-AB $

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