DYOS Tool

Synthetic Compounds Group

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

# AS2190-AB

Tin Oxide

SnO2
ElementWt % OxideWt %
O 21.23
Sn 78.77SnO2 100.00
Sum100.0 Sum100.0
Source: Alfa Aesar, MA, USA
This is a reflected light micrograph of polished, carbon coated synthetic cassiterite (tin oxide) crystals. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument. Cassiterite is a very hard mineral which resists abrasion, hence its occurrence in placer ore deposits, and the slightly raised and rounded surfaces of the crystals in this image. No danger of this stuff getting scratched! An excellent standard for tin, for which it is the main ore, Its name means tin in Greek.
Name Description SPI # Each
Tin Oxide SPI SuppliesŪ Individual Mounted Microanalysis Standard Item AS2190-AB $
Tin Oxide SPI SuppliesŪ Individual Loose Microanalysis Standard Item AS2195-AB $

# AS5080-AB

Cassiterite

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

SnO2
ElementWt % OxideWt %
O 21.24
Ti 0.01TiO2 0.02
Fe 0.03FeO 0.04
Sn 78.73SnO2 99.96
Sum100.0 Sum100.0
2mm cubes and other pieces
Larry Taylor
Polished Cassiterite in T100-52 mount
Name Description SPI # Each
Cassiterite SPI SuppliesŪ Individual Mounted Microanalysis Standard Item AS5080-AB $
Cassiterite SPI SuppliesŪ Individual Loose Microanalysis Standard Item AS5085-AB $
   
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