Definition
Trachyandesite is an extrusive igneous rock.
History
Origin
Indonesia
Discoverer
Unknown
Etymology
From French trachyandésite, trachy + andésite andesite, a lava intermediate in composition between trachyte and andesite
Class
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Family
Group
Volcanic
Other Categories
Fine Grained Rock, Opaque Rock