Definition
Origin
Discoverer
Etymology
Class
Sub-Class
Group
Other Categories
Marl is an unconsolidated sedimentary rock consisting of clay and lime
From Old French marle, from Late Latin marglia
Fine Grained Rock, Opaque Rock
An iron rich extrusive rock found as a member of the alkali basalt magma series
From the name of discoverer, Ben More
Durable Rock, Medium Hardness Rock
Fine Grained Rock, Opaque Rock