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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.
The refractive index of sphalerite (as measured via sodium light, average wavelength 589.3 nm) ranges from 2.37 when it is pure ZnS to 2.50 when there is 40% iron content. [6] Sphalerite is isotropic under cross-polarized light, however sphalerite can experience birefringence if intergrown with its polymorph wurtzite; the birefringence can ...
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 ...
The sphalerite ore found here was presumably converted to zinc oxide via roasting, although no archaeological evidence of this has been found. Smelting is thought to have been done in sealed cylindrical clay retorts which were packed with a mixture of roasted ore, dolomite , and an organic material, perhaps cow dung , and then placed vertically ...
Sphalerite ZnS; Chalcopyrite CuFeS 2; Pyrrhotite Fe 1–x S; Millerite NiS; Pentlandite (Fe,Ni) 9 S 8; Covellite CuS; Cinnabar HgS; Realgar AsS; Orpiment As 2 S 3; Stibnite Sb 2 S 3; Pyrite FeS 2; Marcasite FeS 2; Molybdenite MoS 2; Sulfarsenides: Cobaltite (Co,Fe)AsS; Arsenopyrite FeAsS; Gersdorffite NiAsS; Sulfosalts: Pyrargyrite Ag 3 SbS 3 ...
Structure of a monomeric zinc dialkyldithiophosphate No fluoro complexes are known, but complexes with the other halides and with pseudohalides , [ZnX 3 ] − and [ZnX 4 ] 2− can be prepared. The case of the thiocyanate complex illustrates the class A character of the zinc ion as it is the N-bonded isomer, [Zn(NCS) 4 ] 2− in contrast to [Cd ...
Sphalerite (Zinc blende, ZnS), the most common usage; Hornblende, a complex inosilicate series of minerals; Pitchblende, former name of uraninite; Places.
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