Bournonite is a sulfosalt mineral species, trithioantimoniate of lead and copper with the formula PbCuSbS 3. It was first mentioned by Philip Rashleigh in 1797 as an ore of antimony and was more completely described in 1804 by French crystallographer and mineralogist Jacques Louis, Comte de Bournon (1751–1825), after whom it was named.
Bournonite, sulfosalt mineral, a lead, copper, and antimony sulfide (PbCuSbS3), that occurs as heavy, dark crystal aggregates and masses with a metallic lustre in association with other sulfur-containing minerals in many locations, including the Harz Mountains of Germany; a number of localities in
Bournonite Group. Bournonite-Seligmannite Series. - This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence.?? - Indicates mineral may be doubtful at this locality.
Bournonite has the distinction of being known as "cogwheel ore", due to the unique twinning habit where crystals form in a rough cruciform form with pitted, deeply striated edges. The early German miners called this mineral "radelerz" or wheel ore, describing the cogwheel habit.Bournonite can be very lustrous, with a bright
Bournonite definition is - a mineral PbCuSbS3 consisting of a steel-gray or black metallic-looking sulfide of antimony, lead, and copper occurring in orthorhombic crystals, and also massive.
Bournonite synonyms, Bournonite pronunciation, Bournonite translation, English dictionary definition of Bournonite. n. 1. A mineral of a steel-gray to black color and metallic luster, occurring crystallized, often in twin crystals shaped like cogwheels , also massive.
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Bournonite specimen on matrix with crystals to 5 cm in width and 3.5 cm in height, the largest crystal is lustrous, exceptionally nicely displayed atop matrix and well formed. 10.5 x 5.5 x 5.5 cm
Crystallized Bournonite For Sale - Bournonite Crystals For Sale from Yaoganxian Mine in China and other worldwide localities Below is a gallery of crystallized bournonite for sale from John Betts - Fine Minerals in New York City, NY. BOURNONITE FROM CHINA Fifteen to twenty years ago bournonite specimens from China were readily available, yet ...
Tabular twinned metallic silvery-grey crystals of Herodsfoot Mine Bournonite measuring to 2 cm, on a pyramidal Quartz matrix with light tan coloured Siderite and a late druse of Quartz to some areas. A neat classic Bournonite from the mine.