| Hillebrand reports on hubnerite and wolframite on the 1700 level of the north Montana vein. |
| Other mineral resources include wolframite, gold and unexploited natural gas reserves. |
| It is found in more than 800 different minerals, the most important of which are thortveitite and wolframite. |
| Arsenopyrite, cassiterite, molybdenite, wolframite, uraninite, and several of the common sulfides have all been observed at various locations. |
| This and nearby districts are also known for perfect, doubly terminated wolframite crystals to 20 cm, perched on water-clear quartz. |
| Along with gems and other precious metals, the DRC has a rich supply of gold, cassiterite, wolframite, and coltan. |
