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