DYOS Tool

Natural Minerals Group

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

# AS5200-AB

Olivine*

(Mg,Fe)2SiO4
ElementWt % OxideWt %
O 43.86
Mg 30.62MgO 50.78
Si 19.24SiO2 41.16
Mn 0.08MnO 0.10
Fe 5.92FeO 7.62
Ni 0.23NiO 0.29
Sum100.0 Sum100.0
1.8mm cubes
#1-11650
Polished olivine in T100-52 mount

* for a mineralogist's account of olivine click here
Name Description SPI # Each
Olivine SPI SuppliesŪ Individual Mounted Microanalysis Standard Item AS5200-AB $199.56
Olivine SPI SuppliesŪ Individual Loose Microanalysis Standard Item AS5205-AB $199.56

# AS1260-AB

Olivine

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

(Mg,Fe)2SiO4
ElementWt % OxideWt %
O 43.89
Mg 30.42MgO 50.45
Si 19.44SiO2 41.59
Mn 0.08MnO 0.10
Fe 5.87FeO 7.55
Ni 0.30NiO 0.38
Sum100.0 Sum100.1
Locality unknown
This is a reflected light micrograph of polished, carbon coated olivine crystals. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument. Olivine is a silicate which is formed early in the crystallization of a magma, containing major amounts of magnesium and relatively large amounts of nickel, which is not normally found in silicates. The olivine series of minerals ranges from the magnesian end member, forsterite, to the iron end member, fayalite. This is an example contains about 92% of the forsterite end member. It is highly stable, with good surface properties.
Name Description SPI # Each
Olivine SPI SuppliesŪ Individual Mounted Microanalysis Standard Item AS1260-AB $199.56
Olivine SPI SuppliesŪ Individual Loose Microanalysis Standard Item AS1265-AB $199.56
   
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Saturday March 20, 2010
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