mineral
Sphalerite
(Zn,Fe)S
AI-generated identification · may be incorrectHardness 3.5 to 4 on the Mohs scale, resinous to adamantine luster, variable color from yellow to brown and black, and perfect dodecahedral cleavage.
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Physical properties
Hardness 3.5 to 4 on the Mohs scale, resinous to adamantine luster, variable color from yellow to brown and black, and perfect dodecahedral cleavage.
Formation & geological history
Forms in hydrothermal veins, metamorphic environments, and sedimentary carbonate rocks associated with galena.
Uses & applications
Primary ore of zinc, used in galvanization, brass production, and collected as mineral specimens.
Geological facts
Sphalerite is the most important ore mineral of zinc and exhibits high refractive index and dispersion.
Field identification & locations
Identified by its distinctive resinous luster, perfect cleavage, and streak ranging from white to yellowish-brown. Found worldwide in ore deposits.
