There are 2 alternative ways that rocks in many cases are categorised; the 1st is based to the processes by which they sort, where rocks are labeled as both sedimentary, igneous, and metamorphic. Rocks also are generally classified by grain or crystal measurement. Encyclopaedia Britannica's editors oversee subject parts during https://zionlbpdr.bloguerosa.com/35189372/top-latest-five-personalised-sweets-urban-news