Definition
Travertine is a mineral consisting of layered calcium carbonate formed by deposition from spring waters
Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine
History
Origin
Italy
New Zealand
Discoverer
Marcus Vitruvius Pollio
Ferdinand von Hochstetter
Etymology
From Italian travertino a kind of building stone, from Tiburs, adjective from Tibur (Tivoli), in Italy
From the name of Dun Mountain, New Zealand, + -ite1
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