chalcopyrite

Also known as Kupferkies

Chalcopyrite ( ) is a copper iron sulfide mineral and the most abundant copper ore mineral. It has the chemical formula CuFeS2 and crystallizes in the tetragonal system. It has a brassy to golden yellow color and a hardness of 3.5 to 4 on the Mohs scale. Its streak is diagnostic as green-tinged black.

AI overview

Chalcopyrite is a copper iron sulfide mineral with the chemical formula CuFeS2, prized as the most abundant source of copper ore in the world. It's recognizable by its brassy to golden yellow color and distinctive green-tinged black streak, making it useful for both industrial extraction and mineral identification.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Mineral.color: Brass yellow, may have iridescent purplish tarnish.
Mineral.name: Chalcopyrite
Mineral.category: Sulfide mineral
Mineral.image: Chalcopyrite-199453.jpg
Mineral.formula: CuFeS2
Mineral.IMAsymbol: Ccp
Mineral.molweight: 183.54 g/mol
Mineral.strunz: 2.CB.10a
Mineral.system: Tetragonal
Mineral.class: Scalenohedral (2m) H-M symbol: ( 2m)
Mineral.symmetry: I2d
Mineral.unit cell: a = 5.289 Å, c = 10.423 Å; Z = 4
Mineral.habit: Predominantly the disphenoid and resembles a tetrahedron, commonly massive, and sometimes botryoidal.
Mineral.twinning: Penetration twins
Mineral.cleavage: Indistinct on {011}
Mineral.fracture: Irregular to uneven
Mineral.tenacity: Brittle
Mineral.mohs: 3.5–4

via Wikipedia infobox

Wikidata facts

Image: Chalkopyrite.jpg

Show 8 more facts

Commons category: Chalcopyrite
chemical formula: CuFeS₂
Nickel-Strunz 9th edition (updated 2009): 2.CB.10a
Nickel-Strunz '10th ed', review of (9th ed/ 2009 update): 2.CB.10a
Mohs' hardness: 3.5
IMA Mineral Symbol: Ccp
Strunz 8th edition (series ID, updated): II/B.02
2022 Harmonized System Code: 260300

Sources (5)

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~12 min read

Article

11 sections

Contents

Etymology
Identification
Chemistry
Structure
Paragenesis
Occurrence
Extraction of copper
Pyrometallurgical processes
Hydrometallurgical processes
See also
References

{{Infobox mineral | name = Chalcopyrite | category = Sulfide mineral | boxwidth = | boxbgcolor = | image = Chalcopyrite-199453.jpg | alt = | caption = | formula = CuFeS2 | IMAsymbol = Ccp | molweight = 183.54 g/mol | strunz = 2.CB.10a | system = Tetragonal | class = Scalenohedral (2m) H-M symbol: ( 2m) | symmetry = I2d | unit cell = a = 5.289 Å, c = 10.423 Å; Z = 4 | color = Brass yellow, may have iridescent purplish tarnish. | habit = Predominantly the disphenoid and resembles a tetrahedron, commonly massive, and sometimes botryoidal. | twinning = Penetration twins | cleavage = Indistinct on {011} | fracture = Irregular to uneven | tenacity = Brittle | mohs = 3.5–4

| luster = Metallic | refractive = | opticalprop = Opaque | birefringence = | pleochroism = | streak = Greenish black | gravity = 4.1–4.3 | melt = | fusibility = | diagnostic = | solubility = Soluble in HNO3 | diaphaneity = Opaque | other = magnetic on heating | references = }} Chalcopyrite ( ) is a copper iron sulfide mineral and the most abundant copper ore mineral. It has the chemical formula CuFeS2 and crystallizes in the tetragonal system. It has a brassy to golden yellow color and a hardness of 3.5 to 4 on the Mohs scale. Its streak is diagnostic as green-tinged black.