Custer Feldspar
Potash Feldspar
Jan 2012: We were getting reports of a reduction in the potash content (normally 10% but measured at 7 or 8%). However a melt flow test from Plainsman Clays demonstrates that melting is the same over the past year. The chemistry shown here is from their online data sheet dated 3/23/2005. However +70 mesh particle samples from a number of pallets were fired at cone 10 and they do produce characteristic iron specks, so users should be vigilant to do sieve analysis testing.
This is one of the main feldspars used in the ceramic industry in North America, especially in the west. It is used in industries such as abrasives, sanitary ware, floor and wall tile, dinnerware, pottery, and electrical porcelain throughout the United States, Mexico and Canada. This ceramic grade high potash feldspar is available in crude, 200, 325 mesh and chip form.
Out Bound Links
- (URLs)
MSDS
http://www.pacerminerals.com/msds1.html - (URLs)
Custer Data Sheet
http://www.pacerminerals.com/custer.html - (URLs)
Product Reference Guide
http://www.pacerminerals.com/prodcomp.html - (Materials - Parent)
Feldspar
- (Materials - Parent)
Potash Feldspar - K2O.Al2O3.6SiO2
K-Feldspar, Orthoclase, K Feldspar, Potassium Feldspar
- (Typecodes - Type)
1: FEL - Feldspar
- (MDT)
Crystal Glazes
These materials are specially defined for makers o... - (MDT)
Ron Roy
This is the traditional Ron Roy materials file. He... - (MDT)
North America
The decision about what materials to include in th... - (MDT)
Latin and South America
Latin America and South America. We are working on... - (MDT)
Europe
Countries of Eastern Europe and former Soviet Unio... - (MDT)
Asia
All of Asia including Turkey, Russia, Indosnesia, ... - (MDT)
Africa
All of continental Africa. We are working on this ...
In Bound Links
Pictures
A comparative flow test of Custer, G-200, high soda and high potassium feldspars.
Melt flow test comparing Custer Feldspar from Feb/2012 (right) with Mar/2011 (80:20 mix of feldspar:Ferro frit 3134 has been used for a good flow at cone 10).
XML for Import into INSIGHT
<?xml version="1.0" encoding="UTF-8"?>
<material name="Custer Feldspar" descrip="Potash Feldspar" searchkey="Custer Spar" loi="0.00" casnumber="12168-80-8">
<oxides>
<oxide symbol="CaO" name="Calcium Oxide, Calcia" status="U" percent="0.300" tolerance=""/>
<oxide symbol="K2O" name="Potassium Oxide" status="U" percent="10.000" tolerance=""/>
<oxide symbol="Na2O" name="Sodium Oxide, Soda" status="U" percent="3.000" tolerance=""/>
<oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="17.000" tolerance=""/>
<oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="69.000" tolerance=""/>
<oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.150" tolerance=""/>
</oxides>
<volatiles>
<volatile symbol="LOI" name="Loss on Ignition" percent="0.300" tolerance=""/>
</volatiles>
</material> | 
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