They consist essentially of perthitic alkali feldspar and quartz, with biotite and minor hornblende. The perthite is generally inclusion-poor, with rare or no albite. The granites can be classified as ...

- Wall Zone being characterized by perthite with graphically intergrown quartz or by mixed feldspar. - Outer-intermediate Zone characterized by albite and cleavelandite with quartz-mica patches - ...

centage of quartz ranges from 38.89 to 83.54 percent. The mono-crystalline quartz has both straight to slightly undulator y extinction with angular to subrounded grains.