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Which of the following is not a feature of sedimentary rock?
Porphyritic
Are sedimentary rocks that form when minerals come out of a solution classified as porphyritic?
No. I believe they are called chemical precipitate sedimentary rocks. Yes, I'm sure they're called that. Absolutely! Porphyritic is a term usually applied to igneous rocks, having to do with mineral formation and rock texture.
Dolostone is classified as which type of rock?
Dolostone is classified as a sedimentary rock that is primarily composed of the mineral dolomite. It forms through the chemical alteration of limestone by magnesium-rich fluids.
What kind of rock can sandstones be classified as?
Clastic sedimentary rock.
What type of rock is coal?
Coal is a type of organic sedimentary rock formed from dead plants.
What type of rock can coal be classified as?
Coal is classified as a sedimentary rock.
What sedimentary rock is not classified by the size of clastic sediment that forms the rock?
Chemical sedimentary rocks, such as limestone and chert, are not classified by the size of clastic sediment that forms them, as they are formed from dissolved minerals that precipitate out of water. These rocks are made up of minerals that have been dissolved in water and then later crystallize out of solution.
Is quartzite sedimentary or igneous?
Neither. Quartzite is metamorphosed quartz sandstone, and is therefore a metamorphic rock.
Is chert a sedimentary rock?
Chalk is a form of limestone, a sedimentary rock.
What type of rock is salt?
Rock salt is not a rock...its just a salt that can be extracted from salty water especially from sea water.
How can coquina be classified?
Coquina can be classified as a sedimentary rock that is composed predominantly of fragmented shell and coral debris. It is primarily made up of calcium carbonate and forms in marine environments where these fragments accumulate and are cemented together.
What type of rock forms in layers?
That would be sedimentary rock, and (honorable mention) occasionally metamorphic rock.
