Definition
Marl is an unconsolidated sedimentary rock consisting of clay and lime
Marble is a non-foliated metamorphic rock which is composed of recrystallized carbonate which is formed when limestone is exposed to high temperatures and pressures over a long time
History
Origin
-
Egypt
Discoverer
William Smith
Unknown
Etymology
From Old French marle, from Late Latin marglia
From the Greek marmaros, shining stone and also from the English word marmoreal meaning marble-like
Class
Sedimentary Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
-
Other Categories
Fine Grained Rock, Opaque Rock
Medium Grained Rock, Opaque Rock