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Sphalerite is a sulfide mineral with the chemical formula (Zn, Fe)S. [5] It is the most important ore of zinc . Sphalerite is found in a variety of deposit types, but it is primarily in sedimentary exhalative , Mississippi-Valley type , and volcanogenic massive sulfide deposits.
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Sphalerite, the more common polymorph of zinc sulfide Wurtzite, the less common polymorph of zinc sulfide. ZnS exists in two main crystalline forms. This dualism is an example of polymorphism. In each form, the coordination geometry at Zn and S is tetrahedral. The more stable cubic form is known also as zinc blende or sphalerite.
English: Black tetrahedral crystals of sphalerite up to 8 mm in size across this matrix (4.5 × 3.0 × 2.0 cm) with chalcopyrite and calcite. Found from Creede, Mineral County, Colorado, USA. Found from Creede, Mineral County, Colorado, USA.
Galena, also called lead glance, is the natural mineral form of lead(II) sulfide (PbS). It is the most important ore of lead and an important source of silver. [5]Galena is one of the most abundant and widely distributed sulfide minerals.
English: Geologic context: sphalerite crystals atop sucrosic dolostone, Lockport Dolomite, upper Niagaran Series, Wenlockian, upper Middle Silurian Locality: Millersville Quarry, northern side of the town of Millersville, southwestern Sandusky County, northwestern Ohio, USA. Photo taken by James St. John.
This is also known as the sphalerite structure or the Structurbericht designation B3. Pages in category "Zincblende crystal structure" The following 36 pages are in this category, out of 36 total.
The main minerals that form polymetallic ores are galena, sphalerite, to a lesser extent pyrite, chalcopyrite, arsenopyrite, cassiterite. [1] [2] They are most commonly formed from sulfides but also include oxides. [1] [3]