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 spiny lizard Granite spiny lizard The granite spiny lizard (Sceloporus orcutti) is a species of phrynosomatid lizard. The epithet, "orcutti", honors American naturalist Charles Russell Orcutt (1864–1929), who collected the type specimen in San Diego County, California. It is endemic to southern California in the United States and Baja California in Mexico. The granite spiny lizard is snout-to-vent length. Maximum total length including the tail is . Its dorsal scales are strongly keeled and pointed on its body and tail. It has a wide purple mid-dorsal stripe. The males of the species have yellow-green and blue-centered scales on the body; juveniles and