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
Travertine is a mineral consisting of layered calcium carbonate formed by deposition from spring waters
History
Origin
USA, Australia
Italy
Discoverer
Tornebohm
Marcus Vitruvius Pollio
Etymology
From an old Swedish mining term originally used to describe a type of silicate gangue or waste rock.
From Italian travertino a kind of building stone, from Tiburs, adjective from Tibur (Tivoli), in Italy
Class
Metamorphic Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
-
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock