“An 8mm violet fluorite crystals cluster is attached on a 15mm orthoclase. The orthoclase was attached on the right side to an open miraolitic cavity of approx 30cm but was found loosely in the gravel together with a few loose fluorite clusters. There was no quarz, only feldspar and fluorite. The orthoclase has an overgrowth of muscovite and/or chlorite. It was field collected in summer 2017.”