DYOS Tool

Natural Minerals Group

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

# AS5130-AB

Diopside*

MgCaSi2O6
ElementWt % OxideWt %
O 43.91
Na 0.03Na2O 0.04
Mg 10.31MgO 17.10
Si 25.70SiO2 54.98
Ca 18.34CaO 25.66
Mn 0.17MnO 0.22
Fe 1.46FeO 1.88
Sum 99.9 Sum 99.9
1.7mm cubes

* for a mineralogist's account of diopside click here
Name Description SPI # Each
Diopside SPI SuppliesŪ Individual Mounted Microanalysis Standard Item AS5130-AB $199.56
Diopside SPI SuppliesŪ Individual Loose Microanalysis Standard Item AS5135-AB $199.56

# AS1150-AB

Diopside

(Alternate - either version of this item may be used in our Off-The-Shelf Standards)

MgCaSi2O6
ElementWt % OxideWt %
O 44.30
Mg 11.23MgO 18.62
Al 0.05Al2O3 0.09
Si 25.88SiO2 55.37
Ca 18.39CaO 25.73
Ti 0.05TiO2 0.08
Mn 0.04MnO 0.05
Fe 0.04FeO 0.05
Sum100.0 Sum100.0
Locality: Wakefield, Quebec, Canada
This is a reflected light micrograph of polished, carbon coated diopside crystals. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument. The nice smooth chunky crystals make this a very good standard for Mg, Ca and Si in silicates, and provides another diopside in addition to #16 for comparison. Specimens of diopside from Wakefield, Quebec are renowned for their quality.
Name Description SPI # Each
Diopside SPI SuppliesŪ Individual Mounted Microanalysis Standard Item AS1150-AB $199.56
Diopside SPI SuppliesŪ Individual Loose Microanalysis Standard Item AS1155-AB $199.56
   
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Sunday March 21, 2010
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