Definition
Monzonite is a granular igneous rock with composition between syenite and diorite and containing approximately equal amounts of orthoclase and plagioclase
Diabase is a fine-grained igneous rock which is composed mostly of pyroxene and feldspar
History
Origin
Trento Province, Italy
Germany
Discoverer
Unknown
Christian Leopold von Buch
Etymology
From Mount Monzoni in the Tyrol, Italy, + -ite1
From Greek di + base
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
Family
Group
Plutonic
Volcanic
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Medium Grained Rock, Opaque Rock