Tourmaline crystals in greisen from sudetes (Poland)
Tourmaline crystals in greisen from sudetes (Poland)
Ore vein with pyrite crystals from Sudetes (Poland)
Arsenopyrite crystals from Sudetes (Poland)
Porphyry diabase from Poland (eratic rock)
Quartz druse from eastern Sudetes (Poland)
Quartz druse from eastern Sudetes (Poland)
Quartz druse from eastern Sudetes (Poland)
Ilmenite ore from Sudetes (Poland)
Fan-like quartz from Sudetes (Poland)