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