Definition
Larvikite is an igneous rock and a variety of monzonite, notable for the presence of thumbnail-sized crystals of feldspar
Travertine is a mineral consisting of layered calcium carbonate formed by deposition from spring waters
History
Origin
Larvik, Norway
Italy
Discoverer
Unknown
Marcus Vitruvius Pollio
Etymology
From the town of Larvik in Norway, where this type of igneous rock is found
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, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
Plutonic
-
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock