Red sandstone
Encyclopedia
Red sandstone may refer to:
- SandstoneSandstoneSandstone is a sedimentary rock composed mainly of sand-sized minerals or rock grains.Most sandstone is composed of quartz and/or feldspar because these are the most common minerals in the Earth's crust. Like sand, sandstone may be any colour, but the most common colours are tan, brown, yellow,...
appearing red due to the inclusion of iron oxides (hematiteHematiteHematite, also spelled as haematite, is the mineral form of iron oxide , one of several iron oxides. Hematite crystallizes in the rhombohedral system, and it has the same crystal structure as ilmenite and corundum...
) - Old Red SandstoneOld Red SandstoneThe Old Red Sandstone is a British rock formation of considerable importance to early paleontology. For convenience the short version of the term, 'ORS' is often used in literature on the subject.-Sedimentology:...
- New Red SandstoneNew Red SandstoneThe New Red Sandstone is a chiefly British geological term for the beds of red sandstone and associated rocks laid down throughout the Permian to the beginning of the Triassic that underlie the Jurassic Lias; the term distinguishes it from the Old Red Sandstone which is largely Devonian in...
- Ardjachie StoneArdjachie StoneThe Ardjachie Stone is an uncut but decorated red sandstone boulder discovered by farmers in 1960 on the Ardjachie Farm in the Tarbat peninsula of Easter Ross. It now stands outside of the museum of Tain. On it are depicted several dozen cup or ring marks probably dating to the Bronze Age. It also...
- Aizkorri ("red stone"), Basque Mountains massif