#MinCup24 Kyanite vs Ringwoodite

Vote kyanite! It makes great rocks that you can actually see at the Earth's surface. Look at this beautiful rock surface on Ceapabhal, in South Harris: blue kyanite, with red garnet and pale quartz/feldspar. Rock done right! 🤩 🥰 #Geology #Metasediment #Kyanite #Lewisian @MineralCup

#ThinSectionThursday #MinCup24 It's kyanite for me! Rocks with kyanite are *always* good rocks 🤩🥰 Here's some nice bent and twinned kyanite crystals in a high-pressure granulite-facies gneiss from the Lewisian complex in South Harris. Field of view about 2mm across. More info in Alt text. #Geology #Kyanite #Lewisian #Metasediment #Metamorphic @MineralCup