In nature, there are more than 20 kinds of tungsten minerals, but with industrial significance only two family of scheelite and wolframite. Therefore, in tungsten ores are wolframite, scheelite and wolframite and scheelite ore mixed ore.
Tungsten is a rare and precious metal. It is estimated that the content of tungsten in the earth's crust is one in a million. The country with the largest amount of tungsten in the world is China, which accounts for about 60% of the world's total reserves. At the same time, China is the world's largest supplier of tungsten in the world. It can be said that China is worthy of the kingdom of tungsten.
The United States, Japan, Western Europe is the world's major consumer of tungsten, accounting for 60% of the world's total consumption of ~ 65%. But these countries and regions of tungsten concentrate production can only meet the demand of 12% ~ 15%, most rely on imports to meet the needs, and thus the most important tungsten importer.