Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on Mindat
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralSearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

α-Brass

This page is currently not sponsored. Click here to sponsor this page.
Formula:
Cu3Zn
Colour:
yellow
Lustre:
Metallic
Crystal System:
Isometric
Name:
According to compositional similarity with technical brass - widespread zinc-copper alloy.
Copper-zinc intermetallide with composition very close to Cu3Zn (33.3 mas.% of Zn). Compare with zincian copper.
α-Brass is slightly harder than copper, but not as hard as bronze.

Compare zhanghengite and danbaite.


Hide all sections | Show all sections

Classification of α-BrassHide

Notes:
Unnamed (probably valid)
Approval History:
Unnamed, but probably valid.
1.AB.10a

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
B : Zinc-brass family

Pronounciation of α-BrassHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of α-BrassHide

Metallic
Transparency:
Opaque
Colour:
yellow
Streak:
golden-yellow
Tenacity:
Malleable
Cleavage:
None Observed
Fracture:
Irregular/Uneven

Optical Data of α-BrassHide

Type:
Isotropic

Chemical Properties of α-BrassHide

Formula:
Cu3Zn

Crystallography of α-BrassHide

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral

Synonyms of α-BrassHide

Other Language Names for α-BrassHide

French:Laiton
German:Messing
Japanese:自然黄銅
Simplified Chinese:黄铜

Common AssociatesHide

Associated Minerals Based on Photo Data:
Anorthite3 photos of α-Brass associated with Anorthite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

1.AB.MagnesiumMgHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
1.AB.05CadmiumCdHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
1.AB.05RheniumReHex.
1.AB.05ZincZnHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
1.AB.05TitaniumTiHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
1.AB.10bDanbaiteCuZn2Iso.
1.AB.10aZhanghengiteCuZnIso.
1.AB.10bTongxiniteCu2ZnIso.
1.AB.10aZinccopperiteCu7Zn4 (?)
1.AB.10UM2003-03-E:AgAuCuZn(Cu,Au,Ag)4Zn
1.AB.10UM1980-01-E:CuZnCu3Zn
1.AB.10UM1980-02-E:CuZnCu4.45Zn

Other InformationHide

Magnetism:
Paramagnetic
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for α-BrassHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Li, B., Xue, X., and Yi, S. (1989) Discovery of Cu3Zn in Kalatongke intrusion, Xinjiang. Geol. Lab. 5(4), 239-241 (in Chinese).

Internet Links for α-BrassHide

Localities for α-BrassHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Atlantic Ocean
 
  • Mid-Atlantic Ridge complex
    • Sierra Leone fracture zone
      • Markov Deep
Sharkov, E.V., Abramov, S.S., Simonov, V.A., Krinov, D.I., Skolotnev, S.G., Bel’tenev, V.E., and Bortnikov, N.S. (2007): Geology of Ore Deposits 49(6), 467-486.
    • Trans-Atlantic Geotraverse hydrothermal field (TAG)
Marine Geology 161 (1999) 229–245
Chile
 
  • Atacama Region
    • Copiapó Province
      • Cachiyuyo de Llampos district
Am Min 55:5-6 pp 1019-1021
China
 
  • Xinjiang Autonomous Region
    • Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture)
      • Aletai Prefecture (Altay Prefecture)
        • Fuyun Co. (Koktokay Co.)
Li, B., Xue, X., and Yi, S. (1989): Geol. Lab. 5(4), 239-241.
Finland
 
  • Western and Inner Finland Region
    • Sastamala
      • Suodenniemi
Knauf, V., Sandberg, E., Sokolov, P. and Tabuns, E. 2000. Gold geochemistry and mineralogy of till. A new approach for data integration. bulletin of the Geological Society of Finland Volume 72 (1-2) 57-69.
Japan
 
  • Honshu Island
    • Kanto Region
      • Kanagawa Prefecture
        • Hakone-machi
(Alleged in field trip guide notes.)
  • Tokyo Metropolis
    • Izu Archipelago
Nishida, et al (1994) Naturwissenschaften, 81, 498-502.
Alfredo Petrov specimens
Russia
 
  • Eastern-Siberian Region
    • Prebaikalia (Pribaikal'e)
      • Irkutskaya Oblast'
        • Bodaibo
          • Lena Gold District
            • Kropotkinsky ore cluster
http://www.igem.ru/igem/chem/pt/sukhloge.htm
  • Far-Eastern Region
    • Kamchatka Oblast'
No reference listed
    • Magadanskaya Oblast'
      • Kolyma River Basin
        • Ducat District
          • Omsukchan
            • Ducat ore field
http://www.igem.ru/lmin/fil/metal.htm
    • Primorskiy Kray
      • Khanka Lake
V.V. Seredin data
  • Northern Region
    • Karelia Republic
      • Northern Karelia
P.M. Kartashov analytical data (1987)
    • Komi Republic
      • Timan Range
[AmMin 85:1845]
  • Urals Region
    • Southern Urals
      • Orenburgskaya Oblast'
M.I. Novgorodova analytical data
The Moon
 
  • Apollonius Highlands
Mokhov A.V. and Kartashov P.M. data
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2017, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 20, 2017 00:43:39 Page generated: August 24, 2017 16:50:21
Go to top of page