What is Bauxite?
Bauxite is the primary raw material for producing alumina (Al₂O₃).
It is a sedimentary rock rich in aluminum minerals and is formed in tropical and subtropical climates through natural weathering processes.
Key Characteristics
• Found near the earth’s surface
• Mined by open-pit (surface) mining
• Reddish color due to iron oxide (Fe₂O₃)
• Quality depends mainly on Al₂O₃ content and silica level
Major Producing Countries
Australia (largest producer), Guinea, China, Brazil, India, Indonesia
Component | Typical Range
Al₂O₃: 30–60%
Fe₂O₃: 5–30%
SiO₂: 1–10%
TiO₂: 1–5%
Moisture: Variable
The standardized sequence of steps, technologies, and methodologies used to transform raw materials or inputs into high-quality finished products.