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- Noun

An argillaceous sandstone, of a red color, and much seamed; -- found in India.

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  • Laterite

    Laterite is a soil and rock type rich in iron and aluminium and is commonly considered to have formed in hot and wet tropical areas. Nearly all laterites are of rusty-red coloration, because of high iron oxide content. They develop by intensive and prolonged weathering of the underlying parent rock. Tropical weathering (laterization) is a prolonged process of chemical weathering which produces a wide variety in the thickness, grade, chemistry and ore mineralogy of the resulting soils. The majority of the land area containing laterites is between the tropics of Cancer and Capricorn.

  • Angadipuram Laterite

    Angadipuram Laterite

    Angadipuram Laterite is a notified National Geo-heritage Monument in Angadipuram town in Malappuram district in the southern Indian state of Kerala, India. The special significance of Angadipuram to laterites is that it was here that Dr. Francis Buchanan-Hamilton, a professional surgeon, gave the first account of this rock type, in his report of 1807, as "indurated clay", ideally suited for building construction. This formation falls outside the general classification of rocks namely, the igneous, metamorphic, or sedimentary rocks but is an exclusively "sedimentary residual product". It has a generally pitted and porous appearance. The name laterite was first coined in India, by Buchanan and its etymology is traced to the Latin word "letritis" that means bricks. This exceptional formation is found above parent rock types of various composition namely, charnockite, leptynite, anorthosite and gabbro in Kerala. It is found over basalt in the states of Goa, Maharashtra and in some regions of Karnataka. In Gujarat in western India, impressive formations of laterite are found over granite, shale and sandstone..

  • Stone laterite Borneo

    Stone laterite Borneo is a stone resembling hardened soil from the deposition of substances such as nickel and iron. Laterite itself naturally formed therein contained many elements and substances that make up the nutrients of the soil layer hardens like a rock. Long ago laterite stone often used as materials for laterite bricks because when moist easily cut, but once exposed to air for a long time will harden like stone.

  • Nickel laterite ore

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