sedimentary
Sandstone (with secondary weathering/concretion)
Arenite (composed primarily of Quartz, SiO2)
Hardness: 6-7 (Quartz grains); Color: Tan/Grey; Luster: Dull/Earthy; Structure: Clastic; Cleavage: None; SG: 2.2-2.8.
- Hardness
- 6-7 (Quartz grains)
- Color
- Tan/Grey
- Luster
- Dull/Earthy
Identified More sedimentary →
Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 6-7 (Quartz grains); Color: Tan/Grey; Luster: Dull/Earthy; Structure: Clastic; Cleavage: None; SG: 2.2-2.8.
Formation & geological history
Formed through the accumulation and cementation of sand-sized mineral grains or rock fragments over millions of years in marine or terrestrial environments.
Uses & applications
Used in construction, as a decorative stone, and as a reservoir rock for groundwater and petroleum.
Geological facts
Sandstone represents about 20-25% of all sedimentary rocks. The Grand Canyon's layers are famous examples of sandstone stratigraphy.
Field identification & locations
Identify by its gritty texture (feels like sandpaper) and visible sand grains. Found globally in basins and coastal regions.
More like this
Other sedimentary specimens
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Chert Breccia
Brecciated Chert (Microcrystalline Silica)
sedimentary
Sandstone Grain
Clastic Sedimentary Rock Grain (SiO2 dominated)
sedimentary
Shale or Slaty Mudstone
Argillaceous sedimentary rock
sedimentary
Sandstone
Arenite
sedimentary