| Estimate grain size, sorting, and porosity using the [[depositional environment]]. For example, if a reservoir is a beach sand, it should be fine to medium grained and well sorted with well-rounded quartz grains
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| Estimate [[grain size]], [[Core_description#Maturity|sorting]], and [[porosity]] using the [[depositional environment]]. For example, if a reservoir is a beach sand, it should be fine to medium grained and well sorted with well-rounded quartz grains