'Though it sounds like a reference to oil, it's the branch of geology that studies rock composition'
Petrology
ON THE ROCKS: Though it sounds like a reference to oil, its the branch of geology that studies rock composition
Though it sounds like a reference to oil, it's the branch of geology that studies rock composition
Though it sounds like a reference to oil, it's the branch of geology that studies rock composition
ON THE ROCKS
Petrology
ON THE ROCKS