Natural Minerals Group

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

# AS1080-AB



ElementWt % OxideWt %
O 38.39
Na 0.04Na2O 0.05
Al 0.02Al2O3 0.04
Si 22.46SiO2 48.05
K 0.05K2O 0.06
Ca 13.56CaO 18.97
Mn 18.83MnO 24.31
Fe 6.32FeO 8.13
Zn 0.20ZnO 0.25

Sum 99.9 Sum 99.9

Crushed separated crystals

Locality: Broken Hill, NSW, Australia
This is a reflected light micrograph of a polished, carbon coated bustamite crystal. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument. Similar to rhodonite, another manganese rich silicate, also in this standard, bustamite has more calcium, thus providing an opportunity for cross checking the composition of Ca Mn silicates.
Click here for a mineralogical account of everything you might want to know about Bustamite.

Name Description SPI # Each
Bustamite SPI SuppliesŪ Individual Mounted Microanalysis Standard Item AS1080-AB $
Bustamite SPI SuppliesŪ Individual Loose Microanalysis Standard Item AS1085-AB $

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