Definition
Skarns are formed during regional or contact metamorphism and from a variety of metasomatic processes involving fluids of magmatic, metamorphic, and/or marine origin
Marl is an unconsolidated sedimentary rock consisting of clay and lime
History
Origin
USA, Australia
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Discoverer
Tornebohm
William Smith
Etymology
From an old Swedish mining term originally used to describe a type of silicate gangue or waste rock.
From Old French marle, from Late Latin marglia
Class
Metamorphic Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Soft Rock
Family
Group
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Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock