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Gemmy, colorless to pale green sphalerite from Franklin, New Jersey (see Franklin Furnace), are highly fluorescent orange and/or blue under longwave ultraviolet light and are known as cleiophane, an almost pure ZnS variety. [23] Cleiophane contains less than 0.1% of iron in the sphalerite crystal structure. [12]
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.
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.
Wurtzite is a zinc and iron sulfide mineral with the chemical formula (Zn,Fe)S, a less frequently encountered structural polymorph form of sphalerite. The iron content is variable up to eight percent. [5] It is trimorphous with matraite and sphalerite. [2] It occurs in hydrothermal deposits associated with sphalerite, pyrite, chalcopyrite ...
Zinc sulfide (ZnS) is used in luminescent pigments such as on the hands of clocks, X-ray and television screens, and luminous paints. [150] Crystals of ZnS are used in lasers that operate in the mid-infrared part of the spectrum. [151] Zinc sulfate is a chemical in dyes and pigments. [147] Zinc pyrithione is used in antifouling paints. [152]
Sphalerite, which is a form of zinc sulfide, is the most heavily mined zinc-containing ore because its concentrate contains 60–62% zinc. [14] No significant deposits of cadmium-containing ores are known. Greenockite (CdS), the only cadmium mineral of importance, is nearly always associated with sphalerite (ZnS). This association is caused by ...
In vacuum, wurtzite becomes more stable than sphalerite when the particle size is less than 7 nm at 300 K. [6] At very small particle sizes, the addition of water to the surface of ZnS nanoparticles can induce a change in nanoparticle structure [7] and surface-surface interactions can drive a reversible structural transformation upon ...
One structure is the "interpenetrating primitive cubic" structure, also called a "caesium chloride" or B2 structure. This structure is often confused for a body-centered cubic structure because the arrangement of atoms is the same. However, the caesium chloride structure has a basis composed of two different atomic species.