RAPAKIVI texture has rarely been reported in volcanic rocks1. A notable example of a volcanic body with rapakivi texture is a Miocene rhyolite2 that has an exposure area of about 1/16 square mile near California State Highway 178 on the east flank of Rhodes Hill 1/4 mile west of the eastern boundary of Death Valley National Monument. The body is covered by fan deposits to the south and south-east of the exposure, is in fault contact with Pre-Cambrian metamorphic rocks at its south and south-west boundary and is separated by an igneous breccia from Cambrian and Pre-Cambrian marine rocks along its north and north-west margin2.