It depends on how you are defining the word 'soft'. Quartzite is the hardest and most durable of the three - no question there. Shale can be crumbled with the tap of a hammer. Some loosely cemented sandstone can be crumbled when squeezed hard enough with your hand and some is well cemented and quite hard.
Sandstone is a sedimentary rock.
permeability
Sandstone is extremely porous and absorbs liquids like a sponge.. Shale is nearly impervious to liquids.
Because sandstone has wider particles than shale and this let's the water through.
Some examples of sedimentary rocks include limestone, sandstone, shale, and conglomerate. Limestone forms from the accumulation of calcium carbonate shell fragments, sandstone is made up of sand-sized mineral particles cemented together, shale consists of fine-grained clay and silt particles compacted over time, and conglomerate is composed of rounded pebbles or gravel held together by a matrix.
shale
Shale forms in layers of sandstone or lime.
No, shale and sandstone are two distinct types of sedimentary rocks. Shale is composed of very fine-grained particles, while sandstone is composed of sand-sized grains that are visible to the naked eye.
Sandstone is typically older than shale, as sandstone forms from the consolidation of sand particles through compaction and cementation, while shale forms from the compaction of clay and silt particles. Sandstone is generally associated with sedimentary environments that occurred earlier in geological history compared to those where shale forms.
Quartzite
Sandstone is a sedimentary rock.
NO
Sandstone, Limestone, and Shale
Sandstone, limestone, shale.
permeability
Sandstone is extremely porous and absorbs liquids like a sponge.. Shale is nearly impervious to liquids.
Limestone does not belong, as it is primarily composed of calcite, while the other three - shale, sandstone, and basalt - are all composed of different mineral compositions (clay minerals, quartz, and basaltic minerals, respectively).