Density may differ drastically between unique rock forms thanks to discrepancies in mineralogy and porosity. Familiarity with the distribution of underground rock densities can guide in interpreting subsurface geologic structure and rock variety. Basalt is, generally, an extrusive igneous rock which will show a large variation in porosity (since entrained https://personalised-sweets01222.blogspothub.com/35400901/an-unbiased-view-of-rock-sticks