Where is Laterite found?
Laterite (iron-rich soil/rock)
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Open the appLaterite occurs in specific geological environments. Knowing where to look, and in what kind of rock, is the difference between going home empty-handed and finding a great specimen.
Where to find Laterite
Brazil
Extensive laterite deposits, particularly iron-rich laterites and bauxite, are found in the Amazon Basin and other tropical regions.
Australia
Significant lateritic nickel and bauxite deposits, especially in Western Australia and Queensland.
India
Widespread laterite occurrences, including bauxite and iron ore, particularly in the Deccan Plateau and coastal regions.
Africa
Numerous countries, including Guinea (bauxite), New Caledonia (nickel), and various West African nations, have extensive laterite deposits.
Southeast Asia
Countries like Indonesia, Malaysia, and the Philippines host significant lateritic nickel and bauxite deposits.
Collecting tips
- Look for Reddish Soils. Laterite is characterized by its distinctive reddish-brown to orange-red color, which is a strong indicator of iron oxidation. Look for areas with deeply weathered, reddish soils.
- Check for Hard Crusts. In dry seasons or exposed areas, laterite often forms a hard, indurated crust (duricrust) on the surface. This can be a good indicator of its presence.
- Observe Topography. Laterites typically form on stable, gently sloping to flat uplands or plateaus where weathering has been prolonged and erosion is minimal.
- Consider Climate. Laterite formation is strongly linked to tropical and subtropical climates with high rainfall and distinct wet and dry seasons. Focus your search in such regions.
- Examine Road Cuts and Excavations. These exposures often reveal the characteristic profiles of lateritic soils, showing the transition from parent rock to saprolite and then to the laterite layer.
Quick Check
- Color:
- Reddish-brown to yellowish-brown
- Luster:
- Earthy to dull
- Streak:
- Reddish-brown to yellowish-brown (for iron-rich varieties)
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