Where is Red Sandstone found?
Sandstone (rich in iron oxides)
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Open the appRed Sandstone occurs in specific geological environments. Knowing where to look, and in what kind of rock, is the difference between going home empty-handed and finding a great specimen.
Where to find Red Sandstone
United States
Extensive deposits in the American Southwest (e.g., Colorado Plateau, Zion National Park, Grand Canyon), particularly in Triassic and Jurassic formations. Also found in the Appalachian Basin (e.g., Catskill Formation).
United Kingdom
The 'Old Red Sandstone' (Devonian) is prominent in Scotland, Wales, and parts of England. The 'New Red Sandstone' (Permian-Triassic) is found across central and southern England.
Australia
Significant occurrences in central and western Australia, often associated with arid environments.
Canada
Found in various regions, including the Maritimes (e.g., Prince Edward Island).
Collecting tips
- Look for Outcrops. Red sandstone often forms prominent cliffs, mesas, and buttes in arid regions due to its resistance to erosion compared to softer shales.
- Examine Road Cuts and Quarries. These exposures provide excellent cross-sections of rock layers and can reveal bedding structures and variations in color.
- Check for Iron Staining. The presence of red or reddish-brown staining on surrounding rocks or soil can indicate nearby red sandstone deposits.
- Observe Depositional Environments. Focus on areas that were historically continental, arid, or shallow marine, as these are common settings for red sandstone formation.
Quick Check
- Color:
- Red to reddish-brown
- Luster:
- Dull to earthy
- Streak:
- Reddish-brown (if sufficient hematite is present and the rock is soft enough to streak)
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