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Chalcocite, copper(I) sulfide (Cu2S), is an important copper mineral ore. It is opaque, being colored dark-gray to black with a metallic luster. It has a hardness of 2½ - 3. It is a sulfide with an orthorhombic crystal system. Chalcocite (Copper Sulfide) [1] File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...
Chalcocite (Copper Sulfide) [1] File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...
This article is about minerals in the geologic sense; for nutrient minerals see dietary mineral; for the band see Mineral (band). ...
A chemical formula (also called molecular formula) is a concise way of expressing information about the atoms that constitute a particular chemical compound. ...
General Name, Symbol, Number copper, Cu, 29 Chemical series transition metals Group, Period, Block 11, 4, d Appearance metallic brown Atomic mass 63. ...
In chemistry, a sulfide (sulphide in British) is a chemical compound or combination of sulfur with an oxidation number of -2, with another chemical element or a radical thereof. ...
In mineralogy, shape and size give rise to descriptive terms applied to the typical appearance, or habit of crystals. ...
Rose des Sables (Sand Rose), formed of gypsum crystals In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. ...
In crystallography, the orthorhombic crystal system is one of the 7 lattice point groups. ...
A regular hexagon A hexagon (also known as sexagon) is a polygon with six edges and six vertices. ...
Cleavage, in mineralogy, is the tendency of crystalline materials to split along definite planes, creating smooth surfaces, of which there are several named types: Basal cleavage: cleavage parallel to the base of a crystal, or to the plane of the lateral axes. ...
For fractures in bones, see Fracture (bone). ...
Mohs scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer. ...
The refractive index of a material is the factor by which the phase velocity of electromagnetic radiation is slowed relative to vacuum. ...
Pleochroism is an optical phenomenon where due to double refraction of light by a colored gem or crystal, the light is divided into two paths which are polarized at a 90° angle to each other. ...
The term streak is used in several ways: Streaking, the act of running around nude in public places. ...
Relative density (also known as specific gravity) is a measure of the density of a material. ...
Fusibility is the ease with which a material will melt. ...
A substance is soluble in a fluid if it dissolves in that fluid. ...
General Name, Symbol, Number copper, Cu, 29 Chemical series transition metals Group, Period, Block 11, 4, d Appearance metallic brown Atomic mass 63. ...
Iron ore (Banded iron formation) Manganese ore Lead ore Gold ore An ore is a mineral deposit containing a metal or other valuable resource in economically viable concentrations. ...
For the file system called Lustre, see Lustre (file system) Lustre (American English: luster) is a description of the way light interacts with the surface of a crystal, rock or mineral. ...
In chemistry, a sulfide (sulphide in British) is a chemical compound or combination of sulfur with an oxidation number of -2, with another chemical element or a radical thereof. ...
In crystallography, the orthorhombic crystal system is one of the 7 lattice point groups. ...
Chalcocite is sometimes found as a primary vein mineral in hydrothermal veins. However, most chalcocite occurs in the supergene enriched environment below the oxidation zone of copper deposits as a result of the leaching of copper from the oxidized minerals. It is also often found in sedimentary rocks. In geology, a vein is a finite volume within a rock, having a distinct shape, filled with mono or poly mineralic crystal aggregates, which were precipitated from an (aqueous) fluid or melt. ...
Hydrothermal circulation in the oceans is the passage of the water through mid-ocean Ridge (MOR) systems. ...
Two types of sedimentary rock: limey shale overlaid by limestone. ...
It has been mined for centuries and is one of the most profitable copper ores. The reasons for this is its high copper content (67% atomic ratio and nearly 80% by weight) and the ease at which copper can be separated from sulfur. Still, it is not considered a primary source of copper ore due to its scarcity. General Name, Symbol, Number sulfur, S, 16 Chemical series nonmetals Group, Period, Block 16, 3, p Appearance lemon yellow Atomic mass 32. ...
Fine crystals of chalcocite are quite uncommon and are much sought after. The now depleted mines at Cornwall, Great Britain and Bristol, Connecticut have produced the most famous clusters of wonderfully formed chalcocite crystals. Motto: Onen hag oll (Cornish: One and all) Geography Status Ceremonial and (smaller) Non-metropolitan county Region South West England Population - Total (2004 est. ...
Bristol is a city located in Hartford County, Connecticut. ...
Since chalcocite is a secondary mineral that forms from the alteration of other minerals, it has been known to form pseudomorphs of many different minerals. A pseudomorph is a mineral that has replaced another mineral atom by atom, but it leaves the original mineral's crystal shape intact. Chalcocite has been known to form pseudomorphs of the minerals bornite, covellite, chalcopyrite, pyrite, enargite, millerite, galena and sphalerite. In geology, a pseudomorph is a mineral compound resulting from a substitution process in which the appearance and dimensions remain constant, but the mineral which makes up the chief component of the compound is replaced by another. ...
Bornite (Copper Iron Sulfide) Tarnish of Bornite Bornite is a sulfide mineral with chemical composition Cu5FeS4 that crystallizes in the cubic system. ...
Covellite (also know as covelline) is a crystalline form of copper(II) sulfide (CuS). ...
Chalcopyrite is a copper iron sulfide mineral that crystallizes in the tetragonal system. ...
The mineral pyrite, or iron pyrite, is iron disulfide, FeS2. ...
Enargite from Slovakia Enargite is a copper arsenic sulfosalt mineral with formula: Cu3AsS4. ...
Galena is a lead ore. ...
Sphalerite sample Another sphalerite sample Sphalerite (ZnS) is a mineral that is the chief ore of zinc. ...
The term chalcocite comes from the alteration of the obsolete name chalcosine, from the Greek khalkos, meaning copper. It is also known as redruthite, vitreous copper and copper-glance.
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