Group of pyrite crystals from coal mine in Poland (Upper Silesia)
Alumohydrocalcite on matrix from Nowa Ruda (Sudetes, Poland)
Alumohydrocalcite on matrix from Nowa Ruda (Sudetes, Poland)
Quartz druse from ore deposit Miedzianka (Kupferberg) in Sudetes (Poland)
Sapphire crystals on matrix frm Zazafotsy (Madagascar)
Tourmaline in feldspar-sericite schist from Lower Silesia (Poland)