Definition
Hawaiite is volcanic rock that resembles basalt. It is an olivine basalt with intermediate composition between alkali olivine and mugearite
Travertine is a mineral consisting of layered calcium carbonate formed by deposition from spring waters
History
Origin
Hawaii Islands
Italy
Discoverer
Joseph Iddings
Marcus Vitruvius Pollio
Etymology
From Hawaii Islands
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
Volcanic
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Other Categories
Opaque Rock
Fine Grained Rock, Opaque Rock