Sulfide Mineral

Also found in: Wikipedia.

sulfide mineral

[′səl‚fīd ‚min·rəl]
A mineral compound characterized by the linkage of sulfur with a metal or semimetal.

Sulfide Mineral


any of various minerals comprising a class and consisting of sulfur compounds of metals. Sulfide minerals comprise (by weight) about 0.15 percent of the earth’s crust; more than 200 sulfide mineral varieties are known. The natural selenides, tellurides, and arsenides, as well as the antimonides and bismuth minerals, are close to the sulfide minerals.

The main species-forming elements of sulfide minerals are Pb, Cu, Sb, As, Ag, Bi, Fe, Co, and Ni, which are the components of dozens of mineral species. Only three to five compounds each are formed by Zn, Cd, Mn, Ge, Sn, Tl, Mo, and Hg, but among them are such common and industrially important minerals as sphalerite (ZnS), molybdenite (MoS2), and cinnabar (HgS). Among the elements encountered as isomorphic admixtures in sulfide minerals are Au, Ag, Ga, Ge, In, Tl, and Re. In addition to simple sulfide minerals, which are derivatives of hydrogen sulfide, H2S (for example, Ag2S and PbS), there are also persulfides, which are derivatives of H2S2 (for example, FeS2), complex sulfides (for example, Pb5Sb4S11), sulfosalts with [AsS]3– and [SbS3]3– anions (for example, Ag3SbS3), and double sulfides (for example, chalcopyrite, CuFeS2).

In the modern classification of sulfide minerals, which is based on data from crystal chemistry, subclasses are distinguished within the major chemical types and groups corresponding to crystal structures within these subclasses. The most important sulfide minerals include the following:

(1) Subclass of coordination minerals: galena (PbS) group, sphalerite (ZnS) group, pyrrhotite (Fe1–xS) group, pent-landite [(Fe,Ni)9S8] group, cubanite (CuFe2S3) group, chalcopyrite (CuFeS2) group, and bornite (Cu5FeS4) group.

(2) Subclass of framework minerals: argentite (Ag2S) group and the gray ores.

(3) Subclass of ring minerals: realgar (AsS) group.

(4) Subclass of insular minerals: pyrite (FeS2) group, cobaltite-arsenopyrite (Co AsS – Fe AsS) group.

(5) Subclass of chained minerals: antimonite (Sb2S3) group, millerite (NiS) group, and cinnabar (HgS) group.

(6) Subclass of layered minerals: molybdenite (MoS2) group, orpiment (As2S3) group, and covellite (CuS) group.

The natural sulfide minerals have mainly covalent bonding. Most of them are semiconductors (those with pyrite, marcasite, and arsenopyrite structures), but compounds with metallic conductivity, as well as insulators and superconductors, also exist. (Several disulfides are among the superconductors.) A number of sulfide minerals—for example, antimonite—are ferroelectric. On the basis of magnetic properties, a distinction is made between diamagnetic, paramagnetic, ferromagnetic, and antiferromagnetic sulfide minerals.

Most sulfide minerals are optically opaque, and they often have high reflectivity. Their hardness on Mohs’ scale usually ranges from 2 to 4; the hardness of layered minerals, such as molybdenite and covellite, is only 1–2, whereas persulfides, such as pyrite, have a hardness of up to 5–7. The density of sulfide minerals is greater than 4,000 kg/m3.

The vast majority of sulfide minerals are components of hydrothermal sulfide ores. Some sulfides of Fe, Ni, Cu, and Pt are associated with processes of magma formation in ultrabasic rocks. Sulfide minerals may be of sedimentary origin, or they may be exogenous, having been deposited from surface solutions under the action of H2S—for example, in coal-bearing strata and in oxidation zones of sulfide deposits. Upon oxidation on the earth’s surface, sulfide minerals change readily into sulfates and then into hydroxides, carbonates, and the salts of other oxy acids, and, less often, into such native elements as copper and silver. Many sulfide minerals are important ore minerals.


Ramdohr, P. Rudnye mineraly i ikh srastaniia. Moscow, 1962. (Translated from German.)
Mineraly: Spravochnik, vol. 1. Moscow, 1960.
Marfunin, A. S. Vvedenie v fiziku mineralov. Moscow, 1974.


References in periodicals archive ?
This dense combination of sulfur and metal, known as a sulfide mineral, will sink and sit indefinitely at the bottom of a volcano's magma reservoir.
Antimony is a chemical element and a lustrous gray metalloid and is found in nature mainly as the sulfide mineral stibnite.
Chalcopyrite A copper iron sulfide mineral with the chemical composition CuFeS2.
These problems are due to the fact that mine waste often contains different sulfide minerals containing iron and heavy metals, where pyrite is the predominant sulfide mineral.
An experimental strategy to b determine galvanic interactions affecting the reactivity of sulfide mineral concentrates.
Also, the new classified sulfide mineral resource estimate represents an increase from an inferred resource of 9,036,000 ounces silver at an average grade of 1.
2) Uncharacteristic grade recovery curves in sulfide mineral flotation by Mukund Vasudevan and D.
Greigite is an iron sulfide mineral, the equivalent of the iron oxide magnetite.
New Gold is also pleased to report that AMC Mining Consultants (Canada) Ltd (AMC) has completed a Scoping Study to assess the potential for mining of sulfide mineral resources and the remaining oxide mineral resources with a new project involving the construction of a two stage ball mill and carbon-in-leach ("CIL") processing plant at the company's Amapari project in northern Brazil.
Zinc lead deposits occur as strataform disseminations of zinc, lead and iron sulfides in limestone, vein hosted deposits of the same minerals and the oxidized alterations of the sulfide mineral deposits.
The survey was designed to detect areas of sulfide mineral concentrations within the land position.
IRONCLAD BEGINNING Russell began imagining that rocks might have been the spawning ground of life itself while studying iron sulfide mineral deposits collected from old hydrothermal vents.