Definition
Gabbro is an intrusive igneous rock which is chemically equivalent to plutonic Basalt
Diabase is a fine-grained igneous rock which is composed mostly of pyroxene and feldspar
History
Origin
Germany
Germany
Discoverer
Christian Leopold von Buch
Christian Leopold von Buch
Etymology
From Latin glaber bare, smooth, bald
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, Opaque Rock
Fine Grained Rock, Medium Grained Rock, Opaque Rock