aluminum silicate
Quick Summary
Aluminum silicates are a group of minerals composed of aluminum, silicon, and oxygen. These minerals are classified based on their chemical composition and internal structure, with the fundamental unit being the silicon-oxygen tetrahedron. Aluminum can substitute for silicon within these tetrahedrons or occupy other sites, influencing the mineral's properties.1
Notable aluminum silicates include:
* Andalusite: Found in metamorphic rocks, it's used in refractories and porcelain.2
* Sillimanite: Occurs in high-temperature metamorphic rocks and can be found in fibrous aggregates.3
* Mullite: A specific aluminosilicate with high thermal stability, used in refractories.4
These compounds are significant components of Earth's crust and are crucial in various industrial applications, particularly in the production of refractories due to their high melting points and resistance to extreme temperatures.14
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