All the following rocks are metamorphic except? by Sunday | Aug 11 | Geography WAEC | 0 comments A. gneiss B. marble C. gabbro D. slate E. quartzite Correct Answer: Option C – gabbro Users Also Read These:Which of the following is not an example of…Rocks that are composed of particles derived…Igneous rocks are different from sedimentary rocks by their?The formation of metamorphic rocks normally involves…The factors involved in the formation of metamorphic…