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Australian Spodumene

Alternate Names: Ausi Spodumene, Ausi Spod

Oxide Analysis Formula
Li2O 7.60% 0.98
K2O 0.08% 0.00
Na2O 0.15% 0.01
P2O5 0.17% 0.00
CaO 0.05% 0.00
SiO2 64.50% 4.12
Fe2O3 0.07% 0.00
MnO 0.02% 0.00
Al2O3 26.50% 1.00
TiO2 0.01% 0.00
LOI0.20%
Oxide Weight 380.77
Formula Weight 381.54

Notes

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.

Related Information

Links

URLs http://www.amalgamet.com/Products/minerals.htm
Description of material
Typecodes Feldspar
The most common source of fluxes for high and medium temperature glazes and bodies.
Materials Foote Spodumene
Materials Spodumene
Materials Spodumene Concentrate
Materials CGS 3.1 Spodumene
Materials SC 1.1 Spodumene
Materials SC 1.2 Spodumene
Materials UGS Spodumene
Materials FSC 2.1 Spodumene
Materials SC7.0 Spodumene

Data

Hardness (Moh)6-5-7
Frit Softening Point1420C
Density (Specific Gravity)3.2

By Tony Hansen


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