Definition
Harzburgite is a plutonic rock of the peridotite group consisting largely of orthopyroxene and olivine
Travertine is a mineral consisting of layered calcium carbonate formed by deposition from spring waters
History
Origin
Germany
Italy
Discoverer
Unknown
Marcus Vitruvius Pollio
Etymology
From the name of a town in Harzburg, Germany
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