Definition
Arkose is a sedimentary rock, specifically a type of sandstone containing at least 25% feldspar
An iron rich extrusive rock found as a member of the alkali basalt magma series
History
Origin
France
Isle of Mull, Scotland
Discoverer
Alexandre Brongniart
Ben More
Etymology
From Auvergne region of France used by a French geologist Alexandre Brongniart in 1826 who applied this term to some feldspathic sandstones
From the name of discoverer, Ben More
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
Volcanic
Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock