DYOS Tool

Natural Minerals Group

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

# AS5490-AB

Barite

BaSO4
ElementWt % OxideWt %
O 27.32
Si 0.007SiO2 0.014
S 13.65SO3 34.07
Ca 0.019CaO 0.027
Ni 0.012NiO 0.015
Sr 0.037SrO 0.044
Ba 58.96BaO 65.83
Sum100.0 Sum100.0
Crushed separated crystals
Locality: Huamalias, Huanco, Peru
This is a reflected light micrograph of polished, carbon coated barite crystals. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument. Barite also has 3 perpendicular cleavages, accounting for the rectangular crystals and the cavities in the polished surface. This is the standard for the relatively rare element barium. The name refers to its heavy character.
Click here for a mineralogical account of everything you might want to know about Barite.
Name Description SPI # Each
Barite SPI SuppliesŪ Individual Mounted Microanalysis Standard Item AS5490-AB $
Barite SPI SuppliesŪ Individual Loose Microanalysis Standard Item AS5495-AB $

# AS5040-AB

Barite

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

BaSO4
ElementWt % OxideWt %
O 27.42
S 13.74SO3 34.30
Ba 58.84BaO 65.70
Sum100.0 Sum100.0
Assorted prisms - 2-3mm x 6-10mm
Brook Cliffs, Mesa Co., Colorado
Polished Barite in T100-52 mount
Name Description SPI # Each
Barite SPI SuppliesŪ Individual Mounted Microanalysis Standard Item AS5040-AB $
Barite SPI SuppliesŪ Individual Loose Microanalysis Standard Item AS5045-AB $
   
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