Definition
Lignite is a soft brownish coal which shows traces of plants and is intermediate between bituminous coal and peat
Laterite rock is a type of Sedimentary rock which is rich in iron and aluminium, formed in hot and wet tropical areas
History
Origin
France
India
Discoverer
Unknown
Francis Buchanan-Hamilton
Etymology
From French, Latin lignum wood + -ite1
From Latin later brick, tile + -ite1
Class
Sedimentary Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Soft Rock
Family
Group
-
-
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock