What is granite made up of? It is a rock, not a mineral, so it is built up of several different minerals, which include; Mica, quartz, hornblende, magnetite, and feldspar. Although some may argue against the inclusion of magnetite and mica I firmly believe that those minerals are some of the most prominent appearing in granite. Mica and quartz are known to be metallic and have a low hardness on the Mohs scale. Both of which were exemplified by our sample of granite. Along with a slight magnetic pull that our granite gave off, implying that the granite included magnetite too. Not to mention the granite is partly grey (A similar shade to hornblende), proving that yet another mineral, hornblende, is included within granite. Feldspar is also