metamorphic gneiss rock background with texture and black and white layers

metamorphic gneiss rock background texture precambrian southern california mojave desert banded banding laminated undulate quartz diorite monzonite plagioclase feldspar potassic biotite hornblende muscovite iron oxides big morongo canyon valley environment minerals ancient quartz layers geological grey black white geology structure backdrop old detail gray mineral close-up textured nature wall rough abstract material natural surface pattern stone