Definition
Pantellerite is a peralkaline rhyolite. It has a higher iron and lower aluminium composition than comendite
Travertine is a mineral consisting of layered calcium carbonate formed by deposition from spring waters
History
Origin
Strait of sicily
Italy
Discoverer
Unknown
Marcus Vitruvius Pollio
Etymology
From Pantelleria, a volcanic island in the Strait of Sicily
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
Volcanic
-
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock