Chemical Composition - Typical
|
|
Silica SiO2
|
34-40%
|
Iron(Fe2O3+FeO)
|
25-31%
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Alumina Al2O3
|
17-21%
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Magnesium MgO
|
5-6%
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Calcium CaO
|
5.0-10.0%
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Manganese MnO
|
0-1.0%
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Mineralogical Content - Typical
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|
Almandine garnet
|
97-98 %
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Quartz
|
≤0.2%
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Ilmenite
|
≤0.5%
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Others
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≤0.1%
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Physical Characteristics - Typical
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|
Specific Gravity
|
4.0-4.1/cm3
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Mohs Hardness
|
7.5+
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Acid Solubility (HCL)
|
<1.0%
|
Bulk density
|
1.8-1.9 g/cm3
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Chloride
|
10-15ppm(25ppm max)
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Colour
|
Red & Green
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Melting point
|
1300℃
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Grain shape
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Sub angular
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Toxic substances
|
none
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Conductivity
|
25 ms/m
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