Definition
Trachyandesite is an extrusive igneous rock.
Icelandite belongs to volcanic igneous rocks which is rich in iron and belongs to andesite rock
History
Origin
Indonesia
Iceland
Discoverer
Unknown
Ian S. E. Carmichael
Etymology
From French trachyandésite, trachy + andésite andesite, a lava intermediate in composition between trachyte and andesite
From its origin place near Cenozoic volcano near the parsonage Þingmúli in East Iceland
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
Family
Group
Volcanic
Volcanic
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock