3602 x 4716 px | 30,5 x 39,9 cm | 12 x 15,7 inches | 300dpi
Data acquisizione:
16 marzo 2008
Altre informazioni:
Molybdenite is a mineral of molybdenum disulfide, MoS2. Similar in appearance and feel to graphite, molybdenite has a lubricating effect that is a consequence of its layered structure. The atomic structure consists of a sheet of molybdenum atoms sandwiched between sheets of sulfide atoms. The Mo-S bonds are strong, but the interaction between the sulfur atoms at the top and bottom of separate sandwich-like tri-layers is weak, resulting in easy slippage as well as cleavage planes.Molybdenite occurs in high temperature hydrothermal ore deposits. Its associated minerals include pyrite, chalcopyrite, quartz, anhydrite, fluorite, and scheelite. Important deposits include the disseminated porphyry molybdenum deposit at Questa, New Mexico and Climax, Colorado. Molybdenite also occurs in porphyry copper deposits of Arizona, Colorado, Utah, and Mexico.
