1 Definition
1.1 Definition
Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic
1.2 History
1.2.1 Origin
Unknown
1.2.2 Discoverer
Unknown
1.3 Etymology
From the Greek meaning sounding stone because of the metallic sound it produces if an unfractured plate is hit
1.4 Class
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
1.5 Family
1.5.1 Group
Not Applicable
1.6 Other Categories
Fine Grained Rock, Opaque Rock