Redstone
Plainsman Native Clay
Chemistry
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Volatiles
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Miscellaneous
- Family: Clay Other
- Region: None
- Mined At: Unspecified
- Raw Mineral: No
- Generic: No
Notes
A natural high iron, mid-temperature stoneware clay of good plasticity. It is particulary well suited to oxidation bodies in the middle temperature ranges. It is very deep red at cone 7-8.
Fired Temperature, Cone 4 5 6 7 8 9
--------------------------------------
Fired Shrinkage: 3.1% 3.4% 3.7% 4.0% 4.2% 4.4%
Absorption: 6.4% 5.0% 4.0% 3.5% 3.0% 1.9%
Fired Strength:
(lbs/ square inch) 5100 5300 5600 5900 6400
Sieve Analysis Wet Washed
(Root of 2 series) +35 +48 +65 +100 +150# +200 +325
--------------------------------------------
0.0% 0.3% 2.4% 5.1% 7.6% 10.0% 22.2%
Texture: Sl. tooth
Plastic Index (1-10): 5
Green Strength (lbs/sqaure inch): 850
Dry shrinkage: 5.0
Dried density: 2.05
PCE: 15.5
Data
- Specific Gravity: PCE 15
- Specific Gravity: PBE 15
URLs
- Data Sheet - http://digitalfire.com/plainsman/data/redstone.htm
Suppliers
- Plainsman Clays
Authors
- Tony Hansen (Owner)
XML
<?xml version="1.0" encoding="UTF-8"?>
<material name="Redstone" descrip="Plainsman Native Clay" generic="0" rawmineral="0" searchkey="Red Stone" loi="5.00">
<families>
<family name="Clay Other"/>
</families>
<oxides>
<oxide symbol="BaO" name="Barium Oxide, Baria" status="" percent="0.320" tolerance=""/>
<oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.190" tolerance=""/>
<oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="0.760" tolerance=""/>
<oxide symbol="K2O" name="Potassium Oxide" status="" percent="2.570" tolerance=""/>
<oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.050" tolerance=""/>
<oxide symbol="P2O5" name="Phosphorus Pentoxide" status="" percent="0.550" tolerance=""/>
<oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="0.650" tolerance=""/>
<oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="13.540" tolerance=""/>
<oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="72.260" tolerance=""/>
<oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="4.100" tolerance=""/>
<oxide symbol="MnO" name="Manganous Oxide" status="" percent="0.010" tolerance=""/>
</oxides>
<volatiles>
<volatile symbol="" name="" percent="5.000" tolerance=""/>
</volatiles>
<suppliers>
<supplier name="Plainsman Clays" country="CA" url="http://www.plainsmanclays.com" label=""/>
</suppliers>
<notes>
<note>A natural high iron, mid-temperature stoneware clay of good plasticity. It is particulary well suited to oxidation bodies in the middle temperature ranges. It is very deep red at cone 7-8.
Fired Temperature, Cone 4 5 6 7 8 9
--------------------------------------
Fired Shrinkage: 3.1% 3.4% 3.7% 4.0% 4.2% 4.4%
Absorption: 6.4% 5.0% 4.0% 3.5% 3.0% 1.9%
Fired Strength:
(lbs/ square inch) 5100 5300 5600 5900 6400
Sieve Analysis Wet Washed
(Root of 2 series) +35 +48 +65 +100 +150# +200 +325
--------------------------------------------
0.0% 0.3% 2.4% 5.1% 7.6% 10.0% 22.2%
Texture: Sl. tooth
Plastic Index (1-10): 5
Green Strength (lbs/sqaure inch): 850
Dry shrinkage: 5.0
Dried density: 2.05
PCE: 15.5
</note>
</notes>
<testdata>
<testitem testname="0" value="PCE 15"/>
<testitem testname="0" value="PBE 15"/>
</testdata>
</material>
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