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Are all sandstone the same size?
No, sandstone can vary in size depending on the specific composition of minerals and grain size. Sandstones can have a range of grain sizes from very fine to coarse. The size of the sand grains in the sandstone will impact its appearance and texture.
Is rhyolite coarse grain or fine grain?
fine grained
Why is sandstone porous and quartzite not?
Sandstone is porous because it is made up of compacted grains of sand held together by cemented minerals. Quartzite, on the other hand, is a metamorphic rock formed from sandstone that has undergone intense heat and pressure, causing the grains to recrystallize and fuse together, making it non-porous.
What is the name used to refer to all fine-grained sedimentary rocks?
Fine-grained sedimentary rocks are classified by grain size and range from those composed of sub-microscopic particles (chert) to those with sand-sized particles (sandstone).
What clastic sedimentary rock has a very fine grain?
Siltstone is a clastic sedimentary rock with a very fine grain size, similar to sand but finer than sandstone. It is composed mainly of silt-sized particles and is commonly found in riverbeds, floodplains, and shallow marine environments where moderate energy deposition occurs.
What has the smallest grain size shale siltsone sandstone or Conglomerate?
SmallestshalesiltstonesandstoneconglomerateLargest
Which sedimentary rock has fine-grained sandstone with cross-bedding and land animal fossils?
Sandstone.
What is the difference between fine-grain and coarse-grain?
Coarse is ruff/hard, and fine grain is smooth/ soft!
Is shale or sandstone more permiable?
Sandstone is generally more permeable than shale. This is because sandstone typically has larger pore spaces and a more interconnected grain structure, allowing fluids to flow more easily. In contrast, shale has very fine particles and compacted layers that create low permeability, making it less effective at transmitting fluids.
How are rocks with grains classified?
They are eather fine grain or course grain. Granite are course Grain, Basalts are fine grains.
Is sandstone banded?
Yes, sandstone can be banded. Banded sandstone is formed when varying mineral compositions or grain sizes accumulate in layers during the sedimentation process. These layers create distinct bands or stripes in the sandstone rock.
What is the difference between coarse and fine grain?
Coarse is ruff/hard, and fine grain is smooth/ soft!
