Quartz fragment
Quartz part. A mineral specimen consisting of quartz with inclusions of wolframite, pyrite, and bismuthinite. This mineral association formed as
Archaeology
Objects discovered through archaeological excavations and research
Bornite
Bornite. A ore sample of bornite-magnetite-chalcopyrite type. It contains minerals like bornite, magnetite, and chalcopyrite. Bornite is characterized by a
Rock crystal
Rock crystal. A variety of quartz, represented by transparent crystals of prismatic shape. The surface of the crystals is covered
Chalcopyrite
Chalcopyrite. A mineral sample of chalcopyrite-arsenopyrite type in a calcite-quartz mineral association. Chalcopyrite has a predominant brownish-yellow color and a
The intergrowth of chlorite, chalcopyrite, and arsenopyrite
The association of chlorite, chalcopyrite, and arsenopyrite. The sample contains the minerals chlorite, chalcopyrite, and arsenopyrite. Chlorite is black, chalcopyrite
Malachite in association with barite
Malachite with barite. The chemical formula of malachite: Cu₂CO₃(OH)₂. Malachite is represented as green streaks on the surface of barite.
Native copper specimen
Sample of native copper. The sample was presented by electrician Bogdan from the Akchinskoe quarry at the annual competition “Best
Ammonite imprint in sandstone
Fossil imprint of an ammonite in sandstone. The imprint of an ammonite shell preserved on the surface of the sandstone.
Belemnite rostrum (Belemniticla). Order Belemnitida
Rostrum of the belemnite (Belemnitida). A dense, dart-shaped part of the internal skeleton of extinct cephalopod mollusks. A characteristic fossil
Sandstone with brachiopod remains (Plaesiomus)
Sandstone containing remnants of brachiopod shells of the genus Plaesiomus. The rock belongs to marine sedimentary formations of Paleozoic age,