Definition
Gabbro is an intrusive igneous rock which is chemically equivalent to plutonic Basalt
Jaspillite is an iron rich chemically formed rock which is common in banded iron formation rocks
History
Origin
Germany
Western Australia, Minnesota
Discoverer
Christian Leopold von Buch
Unknown
Etymology
From Latin glaber bare, smooth, bald
From Jaspilite (Mineral), a compact siliceous rock which resembles jasper
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Soft Rock
Family
Group
Plutonic
-
Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock