This sample of molybdenite is displayed in the Smithsonian Museum of Natural History. Molybdenite is a sulfide mineral of molybdenum with the composition MoS2. The sample at left is about 10 cm across and is from Chelan, Washington.
This sample of molybdenite is about 12 cm across and is from Allies mine, Deepwater, New South Wales, Australia. It is described as molybdenite with quartz.
This sample of molybdenite is is about 10 cm across and is from German Bill mine, Wolfram camp, Queensland, Australia.