Geol. A sandstone containing grains of felspar and quartz, found in the Vosges.
1839. Murchison, Silur. Syst., I. xxix. 375. The ‘arkose’ of central France.
1879. Rutley, Stud. Rocks, xiv. 280. Amongst the carboniferous and triassic rocks of some countries a sandstone occurs to which the name Arkose is given.
