Deep-green pyroxene-amphibole rock from Sudetes (Poland)
Polished specimen of calc-silicate rock from Sudetes (Poland)
Red chalcedony vein from Czerwieńczyce graben in Sudetes (Poland)
Tourmaline crystal in pegmatite from Sudetes (Poland)
Sphalerite (var. marmatite) from Sudetes (Poland)
Ore veins in massive schist from Sudetes
Chrysocolla and pseudomalachite on rhyolite from Sudetes (Poland)
Azurite in brown iron ore from Sudetes (Poland)
Hematite vein from Sudetes (Poland)
Quartz druse from ore deposit in Sudetes (Poland)
Brown tourmaline crystals on quartzite from Sudetes (Poland)