Density may differ significantly among diverse rock styles as a result of differences in mineralogy and porosity. Familiarity with the distribution of underground rock densities can aid in interpreting subsurface geologic framework and rock variety. gneiss Gneiss shows a very well-produced foliation and also a badly designed schistosity and cleavage. https://andersonmbpgv.blogripley.com/37040515/rock-sticks-no-further-a-mystery