Definition
Gabbro is an intrusive igneous rock which is chemically equivalent to plutonic Basalt
Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine
History
Origin
Germany
Hawaii Islands
Discoverer
Christian Leopold von Buch
Unknown
Etymology
From Latin glaber bare, smooth, bald
From Greek pikros bitter + -ite, 19th century
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, Opaque Rock