Overview
Wolframite barite is a naturally occurring mineral blend of wolframite (FeWO₄) and barite (BaSO₄). Wolframite is a primary source of tungsten, while barite is known for its high density and chemical inertness. The combination is often found in hydrothermal veins and is mined for industrial applications. The mineral's value lies in its dual utility: wolframite provides tungsten for alloys and electronics, while barite is used in drilling fluids and radiation shielding. Its dark color and granular texture make it easily identifiable in raw form.
Physical and Chemical Properties
Wolframite barite exhibits a high density due to the presence of both wolframite (5.5-6.2 g/cm³) and barite (4.3-4.6 g/cm³). It is insoluble in water and most acids, making it chemically stable for industrial use. The mineral is typically dark brown to black, with a submetallic luster. Wolframite is paramagnetic and weakly radioactive, while barite is non-magnetic and often used as a radiation shield. The combination's properties depend on the ratio of the two minerals, which varies by deposit.
Main Applications
The primary use of wolframite barite is in tungsten extraction, where wolframite is processed to produce tungsten metal or carbide for cutting tools, aerospace alloys, and electronics. Barite's high density makes it ideal for weighting drilling fluids in oil and gas exploration. Additionally, barite is used in radiation shielding for medical and nuclear applications. The mineral blend may also serve as a filler in paints, plastics, and rubber due to its inertness and density.
Safety and Storage
Wolframite barite poses moderate health risks if inhaled as dust, which may irritate the respiratory system. Proper PPE, such as masks and gloves, is recommended during handling. Barite is non-toxic, but wolframite may contain trace heavy metals. Storage should be in dry, cool conditions to prevent moisture absorption or degradation. Avoid mixing with acids, as barite may react to produce hydrogen sulfide gas in rare cases. Label containers clearly to ensure safe handling.
B2B Procurement Guide
When sourcing wolframite barite, prioritize suppliers with certifications for mineral purity and ethical mining practices. Key specifications include tungsten content (typically 30-75% WO₃ in wolframite) and barite purity (minimum 90% BaSO₄). Pricing depends on market demand for tungsten and barite, with fluctuations based on global supply chains. Request material safety data sheets (MSDS) and assay reports to verify composition. Bulk purchases may qualify for discounts, but ensure logistics account for the material's high density.
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