Definition
Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine
Travertine is a mineral consisting of layered calcium carbonate formed by deposition from spring waters
History
Origin
New Zealand
Italy
Discoverer
Ferdinand von Hochstetter
Marcus Vitruvius Pollio
Etymology
From the name of Dun Mountain, New Zealand, + -ite1
From Italian travertino a kind of building stone, from Tiburs, adjective from Tibur (Tivoli), in Italy
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Family
Group
Plutonic
-
Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock