Laterite

Cutting of laterite brickstones, Angadipuram, India

Abandoned laterite quarry. Angadipuram, India

Laterite monument. Angadipuram,India

Laterite formation on gneiss. Trivandrum, India

Laterite formation on basalt. Campinas,Brazil

Laterite formation on basaltic tuff, Vangaindrano, Madagascar

Mobilization and precipitation of iron in veins within kaolinized basalt. Hungen, Vogelsberg area, Germany

Laterite formation on serpentinite. Mayagüez, Puerto Rico

Soft nickel limonite below hard cuirass (Laterite on ultramafic rock). Yate, New Caledonia

Extensive bauxite layer (reddish-brown) on kaolinitic sandstone (white) at Pera Head. Bauxite deposit Weipa, Australia

Bauxite section on kaolinitic sandstone (white) at Pera Head (detail of preceding photo). Bauxite deposit Weipa, Australia

Laterite with relics of unweathered basalt. Puttur, India

Sample of laterite brickstone, Angadipuram, India (scale:1cm)

Lateritic concretion

Lateritic weathering shells around core of amphibolite.

Bauxite with core of unweathered parent rock, Kassa, Guinea

Bauxite specimen with relict stratification of the parent rock (slate), Fria, Guinea (scale:1cm)

Microscopic photo of a laterite thin section (length 1,25 mm) shows quartz relics (white) in voids of a ferrugineous matrix.

Microscopic photo of a bauxite thin section (length 0,82 mm) shows a relic of pyroxene in a gibbsite matrix.

Microscopic photo of a laterite thin section (length 1,25 mm) shows a first (grey matrix) and a second generation (yellowish vein) of kaolinite.

Cretaceous laterite exposed in Makhtesh Gadol, Israel.