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:The factors involved in the formation of metamorphic…Which of the following is not an example of…Which of the following is not a metamorphic rock?Which of the following minerals is likely to be…Rocks that are composed of particles derived…