Arkose can be distinguished from sandstone by its more angular clasts and high feldspar content.

Properties
Rock group	Sedimentary
Origin	Clastic/detrital
Particle size (Wentworth)	0.0625 – 2 mm

Arkose in Hand Sample

Arkose cobble, side A
Arkose cobble, side B
Devonian-aged arkose from the Old Red Sandstone

Arkose in Thin Section

Arkose, plane polars
Arkose, crossed polars

Arkose, plane polars

Arkose in plane polarized light. Magnification: 40x Click here for crossed polars: Click here to explore this slide in plane polars: https://viewer.gigamacro…

Arkose, crossed polars

Arkose in cross polarized light. Magnification: 40x Click here for plane polars: https://youtu.be/4txFdE1cxOk Click here to explore this slide in plane polar…