There's two alternative ways that rocks are sometimes classified; the very first is based within the procedures by which they type, during which rocks are categorized as possibly sedimentary, igneous, and metamorphic. Rocks can also be typically categorised by grain or crystal size. Encyclopaedia Britannica's editors oversee subject parts through https://personalised-sweets55677.gynoblog.com/35353447/not-known-details-about-sticks-of-rock