A2 Ball Clay
PR#3 A2, Saskatchewan ball clay
Chemistry
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Volatiles
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Links to Other Materials
Miscellaneous
- Family: Ball Clay
- Region: None
- Mined At: Unspecified
- Raw Mineral: No
- Generic: No
Notes
A2 is a ball clay mined in a quarry about 5 km west of Ravenscrag, Sask. It has a very high plasticity and is suitable as an additive to all types of stoneware and earthenware bodies. This material is used in many bodies made by Plainsman Clays.
A2 has some intrinsic iron content which makes it burn cream-white. It also has some physical iron concretion particles which act as a source of specks and iron blossoms in reduction fired clay bodies employing it.
A2 has natural soluble salts that migrate to the surface during drying and leave a brown coloration on the buff-colored fired surface. However with 0.35% barium to solubles are removed. These soluble salts cause gelling during the deflocculation process and thus prevent A2 from being used in slip bodies.
Analysis updated July 97.
388 Ba ppm
34 Sr pmm
23 Y ppm
10 Sc ppm
413 Zr ppm
1 Be ppm
70 V ppm
Suppliers
- Plainsman Clays
Authors
- Tony Hansen (Owner)
XML
<?xml version="1.0" encoding="UTF-8"?>
<material name="A2 Ball Clay" descrip="PR#3 A2, Saskatchewan ball clay" generic="0" rawmineral="0" searchkey="" loi="10.58">
<families>
<family name="Ball Clay"/>
</families>
<oxides>
<oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.250" tolerance=""/>
<oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="0.430" tolerance=""/>
<oxide symbol="K2O" name="Potassium Oxide" status="" percent="0.690" tolerance=""/>
<oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.040" tolerance=""/>
<oxide symbol="P2O5" name="Phosphorus Pentoxide" status="" percent="0.030" tolerance=""/>
<oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="0.720" tolerance=""/>
<oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="18.990" tolerance=""/>
<oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="65.120" tolerance=""/>
<oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="1.840" tolerance=""/>
<oxide symbol="MnO" name="Manganous Oxide" status="" percent="0.010" tolerance=""/>
</oxides>
<volatiles>
<volatile symbol="" name="" percent="10.580" tolerance=""/>
</volatiles>
<references>
<reference name="seealso" reason=""/>
</references>
<suppliers>
<supplier name="Plainsman Clays" country="CA" url="http://www.plainsmanclays.com" label=""/>
</suppliers>
<notes>
<note>A2 is a ball clay mined in a quarry about 5 km west of Ravenscrag, Sask. It has a very high plasticity and is suitable as an additive to all types of stoneware and earthenware bodies. This material is used in many bodies made by Plainsman Clays.
A2 has some intrinsic iron content which makes it burn cream-white. It also has some physical iron concretion particles which act as a source of specks and iron blossoms in reduction fired clay bodies employing it.
A2 has natural soluble salts that migrate to the surface during drying and leave a brown coloration on the buff-colored fired surface. However with 0.35% barium to solubles are removed. These soluble salts cause gelling during the deflocculation process and thus prevent A2 from being used in slip bodies.
Analysis updated July 97.
388 Ba ppm
34 Sr pmm
23 Y ppm
10 Sc ppm
413 Zr ppm
1 Be ppm
70 V ppm</note>
</notes>
</material>
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