Definition
Gabbro is an intrusive igneous rock which is chemically equivalent to plutonic Basalt
Aplite is a fine-grained granite composed mainly of feldspar and quartz
History
Origin
Germany
Iran
Discoverer
Christian Leopold von Buch
Unknown
Etymology
From Latin glaber bare, smooth, bald
From German Aplit, from Greek haploos simple + -ite
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
Family
Group
Plutonic
Plutonic
Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock