Definition
Granulite is fine to medium grained metamorphic rock with a granular of polygonal crystals.
Diabase is a fine-grained igneous rock which is composed mostly of pyroxene and feldspar
History
Origin
Central Europe
Germany
Discoverer
Unknown
Christian Leopold von Buch
Etymology
From Latin granulum, a little grain or fine grained
From Greek di + base
Class
Metamorphic Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
Family
Group
-
Volcanic
Other Categories
Coarse Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Medium Grained Rock, Opaque Rock