Refractoriness (℃): | 1770< Refractoriness< 2000 |
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Type: | Refractory Material |
Shape: | Powder |
Al2O3: | 40-60% |
Fe2o3: | 0.5-1.3% |
TiO2: | 0.5% |
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Andalusite is a Aluminosilicate mineral used to make Refractory and porcelain for spark plugs. It is a typical mineral of low-grade thermal metamorphism and is commonly found in mudstones in contact with metamorphic zones. It is mainly formed under the conditions of high geothermal gradient and low pressure-temperature ratio.
Chemical Composition and Size of Andalusite
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Grade
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Al2O3
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SiO2
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Fe2O3
|
TiO2
|
CaO
|
MgO
|
Na2O
|
K2O
|
Size
|
XG56
|
56
|
41.5
|
1.2
|
0.3
|
|
|
0.5
|
0-1mm,1-3mm,200mesh
|
|
XG57
|
57
|
40.3
|
0.8
|
0.25
|
0.1
|
0.15
|
0.1
|
0.2
|
0-1mm,1-3mm,200mesh
|
XG58
|
58
|
38.5
|
0.8
|
0.15
|
0.2
|
0.1
|
0.1
|
0.35
|
0-1mm,1-3mm,200mesh
|
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