Definition
Siltstone can be defined as a fine-grained sedimentary rock which mainly consists of consolidated silt
Diabase is a fine-grained igneous rock which is composed mostly of pyroxene and feldspar
History
Origin
-
Germany
Discoverer
Unknown
Christian Leopold von Buch
Etymology
From English word silt and stone and from Proto-Indo-European root sal and stainaz
From Greek di + base
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
Family
Group
-
Volcanic
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Medium Grained Rock, Opaque Rock