Wolfram

Wolframite is the primary ore of Tungsten, a high-density, heat-resistant metal critical to global manufacturing. In Rwanda, it is extracted from quartz vein deposits, particularly in the Northern Province. Known for the highest melting point of any pure metal, it is an essential raw material for ae

Extraction & Processing: Unlike rare metals or gemstones, tungsten extraction is a high-volume industrial operation. After mining, the ore is crushed, ground, and subjected to magnetic separation and gravity concentration to isolate the heavy, dense wolframite crystals from the surrounding rock. Strategic Importance: Tungsten is classified as a "critical mineral" globally. Because of its extreme durability and ability to withstand heat, it is used in everything from lightbulb filaments and drill bits to armor-piercing munitions and aircraft engines. Market Position: Rwanda adheres to strict international traceability standards (OECD guidelines/iTSCi), ensuring that the tungsten exported is "conflict-free." This has made Rwandan tungsten a preferred supply source for global aerospace and defense industries.

Primary MineralWolframite ($(Fe,Mn)WO_4$)Concentrate Grade60% – 70% $WO_3$ (Standard commercial target)FormDark, dense, heavy concentrate (crushed ore)Key ImpuritiesLow phosphorus, sulfur, and arsenic are required to avoid smelting penalties.