Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Allochalcoselite

Formula:
Cu
+
 
PbCu
2+
5
[O
 
2
|Cl
 
5
|(SeO
 
3
)
 
2
]
System:MonoclinicColour:dark brown
Hardness:3 - 4
Name:for the chemical composition and reflecting the different oxidation states of copper (greek "allo" = different)
This page provides mineralogical data about Allochalcoselite.

Classification of Allochalcoselite

IMA status:Approved 2004
Strunz 8th edition ID:4/K.05-80
Nickel-Strunz 10th (pending) edition ID:4.JG.40

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
G : Selenites with additional anions, without H2O
mindat.org URL:http://www.mindat.org/min-27596.html
Please feel free to link to this page.

Type Occurrence of Allochalcoselite

Type Locality:Second scoria cone, Northern Breakthrough (North Breach), Great Fissure (Main Fracture) eruption, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia
General Appearance of Type Material:small prismatic crystals up to 0.1 mm long
Geological Setting of type material:volcanic fumarole
Associated Minerals at type locality:
SophiiteIlinskiteGeorgbokiiteCotunniteBurnsite

Physical Properties of Allochalcoselite

Lustre:Adamantine
Diaphaneity (Transparency):Transparent
Colour:dark brown
Hardness (Mohs):3 - 4
Cleavage:Perfect
on {100}
Density (calculated):4.653 g/cm3

Crystallography of Allochalcoselite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:B2/m (B1 1 2/m) [C2/m] {C1 2/m 1}
Cell Parameters:a = 18.468Å, b = 6.1475Å, c = 15.314Å
β = 119.284°
Ratio:a:b:c = 3.004 : 1 : 2.491
Unit Cell Volume:V 1516.4 ų
Z:4
X-Ray Powder Diffraction:
d-spacingIntensity
3.08 (100)
3.86 (80)
3.55 (80)
1.543 (50)

Chemical Properties of Allochalcoselite

Formula:
Cu
+
 
PbCu
2+
5
[O
 
2
|Cl
 
5
|(SeO
 
3
)
 
2
]
All elements listed in formula:Cl, Cu, O, Pb, Se
Analyical Data:
CuO (43.96)
ZnO (0.15)
SeO2 (20.66)
Cl (16.58)
PbO (22.34)
less O = Cl2 (3.75)

Relationship of Allochalcoselite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.JG.Prewittite
KPb
 
1.5
ZnCu
 
6
[O
 
2
|Cl
 
10
|(SeO
 
3
)
 
2
]
4.JG.05Georgbokiite
Cu
 
5
[O
 
2
|Cl
 
2
|(SeO
 
3
)
 
2
]
4.JG.05Parageorgbokiite
Cu
 
5
[O
 
2
|Cl
 
2
|(SeO
 
3
)
 
2
]
4.JG.10Chloromenite
Cu
 
9
[O
 
2
|Cl
 
6
|(SeO
 
3
)
 
4
]
4.JG.15Sophiite
Zn
 
2
[Cl
 
2
|SeO
 
3
]
4.JG.20Ilinskite
(Na,K)Cu
 
5
[O
 
2
|Cl
 
3
|(SeO
 
3
)
 
2
]
4.JG.25Francisite
Cu
 
3
Bi(SeO
 
3
)
 
2
O
 
2
Cl
4.JG.30Derriksite
Cu
 
4
UO
 
2
(SeO
 
3
)
 
2
(OH)
 
6
·H
 
2
O
4.JG.35Burnsite
KCdCu
2+
7
[O
 
2
|Cl
 
9
|(SeO
 
3
)
 
2
]

Other Names for Allochalcoselite

Synonyms:
IMA2004-025
Other Languages:
German:Allochalcoselit

Other Information

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

References for Allochalcoselite

Reference List:P. Vergasova, S. V. Krivovichev, S. N. Britvin, S. K. Filatov, P. C. Burns & V. V. Ananyev: Proc. Russ. Min. Soc. 134(3):70-73 (2005)

Articles/Blogs about Allochalcoselite

Internet Links for Allochalcoselite

Search Engines:
  • Look for Allochalcoselite on Google
  • Look for Allochalcoselite images on Google
    • External Links:
  • Look for Allochalcoselite on Webmineral
  • Look for Allochalcoselite on Athena Mineralogy
  • Look for Allochalcoselite on Wikipedia
  • Look for Allochalcoselite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Allochalcoselite in the Natural History Museum (London) online catalogue
    • Mineral Dealers:
  • Find Allochalcoselite on www.crystalclassics.co.uk
  • Lapis Mineral Magazin
  • Buy minerals from Mineralium.com
  • Buy fine minerals and gemstones from Pala International
  • Search for Allochalcoselite at Thames Valley Minerals
  • Top quality minerals from Kristalle of California
  • The Arkenstone - Fine Minerals
  • Buy Fine Minerals from mineralsweb.com
  • Buy Minerals and Crystals from Crystalarium.com
  • rare and unusual minerals mainly crystallized
  • Fabre Minerals - search for Allochalcoselite specimens
  • Search for Allochalcoselite on minvision.com
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Allochalcoselite

    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Russia
     
    • Far-Eastern Region
      • Kamchatka Oblast'
        • Tolbachik volcano
          • Great Fissure (Main Fracture) eruption
            • Northern Breakthrough (North Breach)
    		P. Vergasova et al.: Proc. Russ. Min. Soc. 134(3):70-73 (2005)
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 1993-2008. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register.