| |
Molybdenum
Molybdenum deposits are accumulations of mineral molybdenite crystallized from hydrothermal solutions, sometimes at high temperatures and at great depths, as is typical for tungsten and tin, but mainly in the shallower deposits of average temperatures, more typical of the copper deposits.
The most frequent quartz veins with molybdenite and accompanying pyrite, wolframite rarely, sometimes with copper sulfides. Veins occur almost always at the top of the granite massifs near the roof.
Large reserves of molybdenum ores give poor deposits such as copper-porphyry ores, provided large stocks of granitoid rocks penetrated by quartz veins with chalcopyrite and molybdenite. Molybdenum content in the ores of this type rarely reaches 0.1%, and typically a few thousandths or hundredths of a percent, but the vast deposits of ore, the possibility of developing public works and industrial copper allow you to extract molybdenum from the benefit even from ores containing a few thousandths of a percent. developed.
|