Is sand stone a hard stone?



  1. 0 Votes

    Sandstone is made up of hard minerals, but it is not a hard stone, in general.  Most sandstone consists of quartz and feldspar, quartz being harder than feldspar.  It is a sedimentary rock, and some are more erosional-resistant than other sandstones due to how they formed and their composition.  Sandstone is usually the rock that aquifers and oil reservoirs are found in because they are porous. 

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