Definition
An iron rich extrusive rock found as a member of the alkali basalt magma series
Trachyandesite is an extrusive igneous rock.
History
Origin
Isle of Mull, Scotland
Indonesia
Discoverer
Ben More
Unknown
Etymology
From the name of discoverer, Ben More
From French trachyandésite, trachy + andésite andesite, a lava intermediate in composition between trachyte and andesite
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Family
Group
Volcanic
Volcanic
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock