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Australian Spodumene

Formula: Li2O.Al2O3.4SiO2
Alternate Names: Ausi Spodumene, Ausi Spod

OxideAnalysisFormula
CaO0.05%0.003
Li2O7.60%0.979
K2O0.08%0.003
Na2O0.15%0.009
P2O50.17%0.005
TiO20.01%0.000
Al2O326.50%0.998
SiO264.50%4.122
Fe2O30.07%0.002
MnO0.02%0.001
LOI0.20
Oxide Weight380.77
Formula Weight381.54
If this formula is not unified correctly please contact us.
DENS - Density (Specific Gravity) 3.2
HMOH - Hardness (Moh) 6-5-7
GSPT - Frit Softening Point 1420C

Australian spodumenes are considered the whitest in the world.

The material features [Si2O6]3- chains bonded together by lithium and aluminium ions. It is a monoclinic pyroxene in the form of long tabular, prismatic crystals.

Beta-spodumene (formed at 1082C) has a very low coefficient of thermal expansion, about 1 x 10-6/°C for the range 25°C to 1000°C.


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By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Australian Spodumene" descrip="" searchkey="Ausi Spodumene, Ausi Spod" loi="0.00" casnumber="66057-55-4"> <oxides> <oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.050" tolerance="0.90"/> <oxide symbol="Li2O" name="Lithium Oxide, Lithia" status="" percent="7.600" tolerance="0.25"/> <oxide symbol="K2O" name="Potassium Oxide" status="" percent="0.080" tolerance="0.25"/> <oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.150" tolerance="max"/> <oxide symbol="P2O5" name="Phosphorus Pentoxide" status="" percent="0.170" tolerance="0.40"/> <oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="0.010" tolerance=""/> <oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="26.500" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="64.500" tolerance=""/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.070" tolerance="max"/> <oxide symbol="MnO" name="Manganous Oxide" status="" percent="0.020" tolerance="max"/> </oxides> <volatiles> <volatile symbol="LOI" name="Loss on Ignition" percent="0.200" tolerance=""/> </volatiles> </material>


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