Definition
Quartzite is a non-foliated metamorphic rock that forms by the metamorphism of pure quartz Sandstone
Gabbro is an intrusive igneous rock which is chemically equivalent to plutonic Basalt
History
Origin
-
Germany
Discoverer
Unknown
Christian Leopold von Buch
Etymology
From quartz + -ite
From Latin glaber bare, smooth, bald
Class
Metamorphic Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
Family
Group
-
Plutonic
Other Categories
Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock