Definition
Mylonite is a metamorphic rock formed by ductile deformation during intense shearing encountered during folding and faulting, a process termed cataclastic or dynamic metamorphism
Diabase is a fine-grained igneous rock which is composed mostly of pyroxene and feldspar
History
Origin
New Zealand
Germany
Discoverer
Unknown
Christian Leopold von Buch
Etymology
From Greek mulōn mill + -ite
From Greek di + base
Class
Metamorphic Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
Family
Group
-
Volcanic
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Medium Grained Rock, Opaque Rock