cutout a specimen of plutonic granite stone on white background.

alkali background been black blue changed close coal coarsegrained composed crystal earlier enough eye feldspar foliated form gem gemstone geologists geology gold grains granite hand holding igneous intrusive isolated large lightcolored macro metamorphic mineral mostly natural nature non object ore original phaneritic piece plagioclase pyrite quartz quartzite rock rocks rough sedimentary shell some started stone substantially texture their type unaided visible white