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IXL RA2

OxideAnalysisFormula
CaO0.29%0.024
MgO0.46%0.053
K2O0.49%0.024
Na2O0.20%0.015
TiO20.78%0.046
Al2O321.83%1.000
SiO264.30%4.999
Fe2O31.49%0.044
LOI10.94
Oxide Weight419.77
Formula Weight471.34
If this formula is not unified correctly please contact us.

A very plastic ball clay of fairly high coal content. This material has some iron stone concretion material in it and thus it does contribute to some iron blossoms in cone 10R if not ground fine. RA2 has some soluble salts that produce a brownish surface coloration in reduction firing.

RA2 is similar to most commercial ball clays except that it has a higher iron content and it does not deflocculate well for use in casting slips due to the solubles content.

RA2 fires to a yellow to grey buff in oxidation and reduction.

Fired
Shr Porosity
------------------------
Cone 7 6.9 3.4
Cone 9 7.3 2.5
Cone 11 7.2 2.0


IXL Industries clay quarry near Ravenscrag, Saskatchewan in 1984.

IXL Industries clay quarry near Ravenscrag, Saskatchewan in 1984.

Layers of the Whitemud Formation are being mined. The layer being extracted is a silty stoneware they referred to as the "D member" (equivalent to Plainsman 3D which is mined several miles to the east). Below the D they continued to mine a much whiter kaolinized sand of equal or more thickness. Above the D is a ball clay (equivalent to Plainsman A2). Above that is a light burning stoneware (the combined layers that Plainsman extracts separately as A3 and 3B). A foot-thick layer of much harder volcanic ash is visible in the green over burden at the top. From these stoneware clays they made brick of exceptional quality, firing it as high as cone 10. Twenty years later the company reclaimed this land and today you would be unable to find where the quarry was located.

Out Bound Links


By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="IXL RA2" descrip="" searchkey="" loi="10.94" casnumber="70694-09-6"> <oxides> <oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.290" tolerance=""/> <oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="0.460" tolerance=""/> <oxide symbol="K2O" name="Potassium Oxide" status="" percent="0.490" tolerance=""/> <oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.200" tolerance=""/> <oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="0.780" tolerance=""/> <oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="21.830" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="64.300" tolerance=""/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="1.490" tolerance=""/> </oxides> <volatiles> <volatile symbol="LOI" name="Loss on Ignition" percent="10.940" tolerance=""/> </volatiles> </material>


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