Definition
Gritstone or grit is a hard, coarse-grained, siliceous sandstone
Laterite rock is a type of Sedimentary rock which is rich in iron and aluminium, formed in hot and wet tropical areas
History
Origin
Pennines, England
India
Discoverer
J.J. Ferber
Francis Buchanan-Hamilton
Etymology
From Grit + Stone
From Latin later brick, tile + -ite1
Class
Sedimentary Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Soft Rock
Family
Group
-
-
Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock