Tourmaline in feldspar-sericite schist from Lower Silesia (Poland)
Filled quartz druse from Sudetes (Poland)
Leucocratic rock from Sudetes (Poland)
Serpentine-group mineral from Sudetes (Poland)
Tourmaline crystals in greisen from sudetes (Poland)
Tourmaline crystals in greisen from sudetes (Poland)
Ore vein with pyrite crystals from Sudetes (Poland)
Quartz druse from eastern Sudetes (Poland)
Quartz druse from eastern Sudetes (Poland)
Fan-like quartz from Sudetes (Poland)