Definition
Travertine is a mineral consisting of layered calcium carbonate formed by deposition from spring waters
Peridotite is a dense, coarse-grained plutonic is the main constituent of the earth's mantle
History
Origin
Italy
Pike County, U.S
Discoverer
Marcus Vitruvius Pollio
Unknown
Etymology
From Italian travertino a kind of building stone, from Tiburs, adjective from Tibur (Tivoli), in Italy
From French, from peridot + -ite
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
Plutonic
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock