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Phlogopite mica

Formula: KMg3AlSi3O10F(OH)
Alternate Names: Amtal c98, Amtalc, amtal c 98

Oxide Weight109.96
Formula Weight124.95
If this formula is not unified correctly please contact us.

Formerly Pioneer Talc.
AMTAL C-98 is a white-firing talc used as a flux for traditional, refractory and technical ceramic applications (wall and floor tile, tableware, sanitaryware, electrical Insulators, porcelain, hobbyware ). It is also used in technical ceramics where it functions as the major silicate material replacing clays and feldspars in lower grade alumina products such as steatite ceramics and low-expansion cordierite materials.

AMTAL C-98 can also be used as an economical source of MgO.
The powder is grey (as opposed to white of many other talcs) because the material contains some amorphous carbon.

Texas talc (left) and Montana talc (right)

Texas talc (left) and Montana talc (right)

Texas talc contains some amorphous carbon. The carbon is not stand-alone, but as CO2 in the dolomitic part of the ore. It produces 7% LOI between 750-850C.

Out Bound Links

In Bound Links

By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Amtalc-C98" descrip="Phlogopite mica" searchkey="Amtal c98, Amtalc, amtal c 98" loi="0.00" casnumber=""> <oxides> <oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="3.500" tolerance=""/> <oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="29.500" tolerance=""/> <oxide symbol="K2O" name="Potassium Oxide" status="" percent="0.300" tolerance=""/> <oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="0.100" tolerance=""/> <oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="0.300" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="53.500" tolerance=""/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.500" tolerance=""/> </oxides> <volatiles> <volatile symbol="LOI" name="Loss on Ignition" percent="12.000" tolerance=""/> </volatiles> </material>

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