Aluminium is manufactured from

Aluminium is primarily manufactured from bauxite ore, which is a clay-like substance rich in hydrated aluminium oxides [2]. Bauxite is the most abundant metal-bearing ore in the Earth's crust and is formed by the decomposition of rocks containing aluminium silicates [2]. The manufacturing process typically involves two main stages: first, the Bayer process is used to refine bauxite into alumina (pure aluminium oxide); second, the Hall-Héroult process uses electrolysis to extract metallic aluminium from the alumina [4]. Approximately four to six tonnes of bauxite are required to produce one tonne of aluminium [4]. While other minerals contain aluminium, bauxite remains the only commercial source used for large-scale production due to its high concentration of aluminium oxide, typically ranging from 30% to 60% [3].

Sources

1. [1] NCERT. (2022). Contemporary India II: Textbook in Geography for Class X (Revised ed.). NCERT. > Chapter 5: Print Culture and the Modern World > Bauxite Bauxite > p. 110
2. [2] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 9: Distribution of World Natural Resources > Bauxite (aluminium) > p. 33
3. [4] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 11: Industries > Aluminium Industry > p. 39
4. [3] INDIA PEOPLE AND ECONOMY, TEXTBOOK IN GEOGRAPHY FOR CLASS XII (NCERT 2025 ed.) > Chapter 5: Mineral and Energy Resources > Bauxite > p. 57