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Laterite
Laterite

Coquina
Coquina



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Definition

Definition

Laterite rock is a type of Sedimentary rock which is rich in iron and aluminium, formed in hot and wet tropical areas
Coquina is a sedimentary rock that is composed either wholly or almost entirely of the transported, abraded, and mechanically-sorted fragments of the shells of molluscs, trilobites, brachiopods, or other invertebrates

History

Origin

India
European Foreland Basins

Discoverer

Francis Buchanan-Hamilton
Unknown

Etymology

From Latin later brick, tile + -ite1
From Concha (Latin)+ Coquina(Spanish) +conch(English)= Couquina (mid 19th century)

Class

Sedimentary Rocks
Sedimentary Rocks

Sub-Class

Durable Rock, Soft Rock
Durable Rock, Soft Rock

Family

Group

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Other Categories

Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock