Granite and feldspar. The term "granitic" means granite-like and is applied to granite and a group of intrusive igneous rocks with similar textures and slight variations in composition and origin. These rocks mainly consist of feldspar, quartz, mica, and amphibole minerals, which form an interlocking, somewhat equigranular matrix of feldspar and quartz with scattered darker biotite mica and amphibole (often hornblende) peppering the lighter color minerals. Occasionally some individual crystals (phenocrysts) are larger than the groundmass, in which case the texture is known as porphyritic. A granitic rock with a porphyritic texture is known as a granite porphyry. Granitoid is a
Granite, Colorado inches is provided for it is not considered that the prescribed limit can with reasonable safety be exceeded. While Granite is a ghost of what it once was, what with both a railroad and a major highway running through it has survived the years. However, many old ghost towns remain in the hills surrounding Granite. As the prospectors searched for gold, every Arkansas River tributary was a potential gold mining site and a chance to strike it rich. About two miles south of Granite, Clear Creek empties into the Arkansas River. Although prospecting took place in this area as early