minereuri
Minereuri (ores) are rocks and mineral aggregates that contain economically valuable substances and can be mined profitably. They are the principal sources of metals and many industrial minerals. Ore minerals include hematite and magnetite in iron ore; chalcopyrite and bornite in copper ore; galena and sphalerite for lead and zinc; and native gold or silver in precious-metal ores.
Classification: Metallic ores contain metal-bearing minerals within a gangue. Non-metallic ores (industrial minerals) provide minerals such
Formation: Ore deposits form through diverse geological processes, including magmatic differentiation, hydrothermal activity creating sulfide or
Exploration and reserves: Evaluation uses geological mapping, geochemical sampling, drilling, and geophysical surveys. Reserve and resource
Extraction and processing: Mined by open-pit or underground methods depending on geometry and grade. Beneficiation (crushing,
Environmental and social aspects: Mining can affect land, water, and ecosystems; responsible practice includes waste management,
Notable examples: iron ore (hematite, magnetite), copper ore (chalcopyrite), lead-zinc ores (galena, sphalerite), gold and silver