chalcopyrite
Sign in to saveChalcopyrite ( ) 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
Article
11 sectionsContents
- 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.