cornetite
Sign in to saveCornetite is a phosphate of copper with hydroxyl, named after the geologist . It was discovered in 1917.
Key facts
- Mineral.name
- Cornetite
- Mineral.category
- Phosphate minerals
- Mineral.image
- Cornetite-4jg1a.jpg
- Mineral.caption
- Cornetite from the type locality, Star of the Congo Mine, Lubumbashi, Haut-Katanga District, Democratic Republic of the Congo. 5.7 × 3.9 × 3.9 cm in size
- Mineral.formula
- Cu3PO4(OH)3
- Mineral.IMAsymbol
- Cne
- Mineral.molweight
- 336.63 g/mol
- Mineral.strunz
- 8.BE.15
- Mineral.dana
- 41.03.02.01
- Mineral.system
- Orthorhombic
- Mineral.class
- Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)
- Mineral.symmetry
- Pbca
- Mineral.unit cell
- a = 10.845(10) Å,b = 14.045(10) Å,c = 7.081(5) Å; Z = 8
- Mineral.color
- Dark blue to green-blue
- Mineral.habit
- Crystals are short prismatic
- Mineral.twinning
- On {h0l}
- Mineral.cleavage
- None observed
- Mineral.mohs
- 4.5
via Wikipedia infobox
Wikidata facts
- Image
- Cornetite.jpg
Show 6 more facts
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 8.BE.15
- Commons category
- Cornetite
- Nickel-Strunz 9th edition (updated 2009)
- 8.BE.15
- IMA Mineral Symbol
- Cne
- chemical formula
- Cu₃PO₄(OH)₃
- Strunz 8th edition (series ID, updated)
- VII/B.09
Sources (1)
via Wikidata · CC0
~2 min read
Article
4 sectionsContents
- Type locality
- Environment
- Structure
- References
{{Infobox mineral | name = Cornetite | category = Phosphate minerals | image = Cornetite-4jg1a.jpg | caption = Cornetite from the type locality, Star of the Congo Mine, Lubumbashi, Haut-Katanga District, Democratic Republic of the Congo. 5.7 × 3.9 × 3.9 cm in size | formula = Cu3PO4(OH)3 | IMAsymbol = Cne | molweight = 336.63 g/mol | strunz = 8.BE.15 | dana = 41.03.02.01 | system = Orthorhombic | class = Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m) | symmetry = Pbca | unit cell = a = 10.845(10) Å,b = 14.045(10) Å,c = 7.081(5) Å; Z = 8 | color = Dark blue to green-blue | habit = Crystals are short prismatic | twinning = On {h0l} | cleavage = None observed | mohs = 4.5 | solubility = cold HCl | luster = Vitreous | refractive = nα = 1.765 nβ = 1.810 nγ = 1.820 | opticalprop = Biaxial (−) | 2V = Measured: 33°, Calculated: 48° | dispersion = None | birefringence = δ = 0.055 max | pleochroism = Non-pleochroic | gravity = (Measured) 4.10 | diaphaneity = Transparent to translucent | references = }}
Cornetite is a phosphate of copper with hydroxyl, named after the geologist . It was discovered in 1917.