Definition
Carbonatite is intrusive or extrusive igneous rock which is defined by mineralogic composition, consisting of greater than 50 percent carbonate minerals
Travertine is a mineral consisting of layered calcium carbonate formed by deposition from spring waters
History
Origin
Tanzania
Italy
Discoverer
Unknown
Marcus Vitruvius Pollio
Etymology
From any intrusive igneous rock, having a majority of carbonate minerals
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, Soft 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