1 Definition
1.1 Definition
Diorite is a grey to dark-grey intermediate intrusive igneous rock composed principally of plagioclase feldspar,biotite, hornblende, and pyroxene
Gabbro is an intrusive igneous rock which is chemically equivalent to plutonic Basalt
1.2 History
1.2.1 Origin
1.2.2 Discoverer
Unknown
Christian Leopold von Buch
1.3 Etymology
From early 19th century coined in French, formed irregularly from Greek diorizein distinguish
From Latin glaber bare, smooth, bald
1.4 Class
Igneous Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
1.6 Other Categories
Coarse Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock