<p>The Jbel Tirremi fluorite deposit in Northeastern Morocco represents a valuable case study in integrating advanced geotechnical planning with environmental stewardship for sustainable mineral extraction. Hosted within Jurassic carbonate units of a 3 × 2&#xa0;km anticlinal structure, the subvertical fluorite veins extend 700&#xa0;m along strike to 200&#xa0;m depth. This study demonstrates how modern 3D geostatistical modeling (estimating 4.77 Mt at 28% CaF₂) directly informs optimized mine design, enabling waste rock reduction compared to conventional approaches through precise pit slope optimization (55° angle with 24&#xa0;m berms). Our integrated methodology combines: (1) geomechanical analysis of host rock properties to ensure slope stability; (2) strategic waste placement in engineered dumps (4.6 mm³ capacity), minimizing surface disturbance; and (3) production planning (150,000 t/year) aligned with beneficiation capacity. The operational framework employs traditional drill-blast-load-haul cycles while introducing innovations in ore-waste discrimination during excavation. Beyond immediate project benefits, this work provides transferable solutions for: (1) enhancing resource recovery through 3D model-driven pit designs, (2) setting new benchmarks for waste volume reduction in carbonate-hosted deposits, and (3) establishing rehabilitation baselines for post-mining land use. These findings offer a replicable template for balancing economic viability (10-year mine life) with environmental responsibility in similar fluorite operations globally.</p> Graphical Abstract <p>Based on this visual graphic schematic, this study offers a structured overview of the geotechnical, environmental, and operational planning involved in the development of the Jbel Tirremi fluorite deposit in Northeastern Morocco. The graphical abstract is organized into three key stages that trace the mining process, from geological assessment to post-closure planning.</p> <p>Stage 1, “Exploration Stage”, Fluorite mineralization occurs within Jurassic carbonate units, extending 700&#xa0;m long and 200&#xa0;m deep. Advanced geostatistical 3 modeling estimates 4.77 million tons of ore at 28% CaF₂, visualized through 3D block models to guide mine planning. Stage 2, “Mining stage”, The optimized open-pit features a 55° slope angle with engineered berms for stability, alongside two waste dumps (4.6 million m³ capacity) to manage overburden. Standard drilling/blasting and hauling methods ensure operational efficiency while minimizing environmental disruption. Finally, Stage 3, “Closure Plan”, Post-mining land use focuses on ecological restoration, contrasting active operations with rehabilitated landscapes to highlight sustainable practices.</p> <p>The abstract integrates geotechnical, operational, and environmental planning, emphasizing resource efficiency and long-term ecological balance.</p> <p></p>