Uzbek Tuff Cited by user Geolog07 on 28 Sep 2022 [[Fayl:Bandelier-Pockmarked_Cliff.jpg|link=//upload.wikimedia.org/wikipedia/commons/thumb/6/64/Bandelier-Pockmarked_Cliff.jpg/200px-Bandelier-Pockmarked_Cliff.jpg|thumb|29…
English Schist Cited by user Kent G. Budge on 22 Jul 2021 Schist is a medium-grained metamorphic rock showing pronounced schistosity. This means that the rock is composed of mineral grains easily seen with a low-power hand lens…
English Tuff Cited by user Kent G. Budge on 30 Sep 2020 Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption.