Help|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 MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
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


This page is currently not sponsored. Click here to sponsor this page.
Cu10(AsO4)4(SO4)(OH)6 · 8H2O
green with a bluish tint
For the type locality in several mines at Schwarzleograben, Hütten, Leogang, Saalfelden, Salzburg, Austria.
Closely related to Unnamed (Leogangite-related mineral) with which it is easily confused.

Classification of Leogangite

Approval Year:

C : Phosphates without additional anions, with H2O
C : With only medium-sized cations, RO4:H2O = 1:1.5

Physical Properties of Leogangite

Diaphaneity (Transparency):
green with a bluish tint
light green
parallel to (100)
3.55 g/cm3 (Calculated)

Optical Data of Leogangite

Biaxial (-)
RI values:
nω = 1.590 nε = 1.740 n = 1.744
Measured: 182°
Max Birefringence:
δ = 0.150
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Blue-green to pale green.

Chemical Properties of Leogangite

Cu10(AsO4)4(SO4)(OH)6 · 8H2O
IMA Formula:
Cu10(AsO4)4SO4(OH)6 · 8H2O
Elements listed in formula:
Analytical Data:
Composition by microprobe analysis, average formula based on 20 +/- 3 oxygen atoms.
CuO (49.6 - 52.9)
As2O5 (28.5 - 31.1)
SO3 (4.9 - 5.4)
Common Impurities:

Crystallography of Leogangite

Crystal System:
Class (H-M):
2/m - Prismatic
Space Group:
Cell Parameters:
a = 21.77 Å, b = 12.327 Å, c = 10.72 Å
β = 92.85°
a:b:c = 1.766 : 1 : 0.87
Unit Cell Volume:
V 2873 ų
X-Ray Powder Diffraction Data:
10.85 (100)
5.44 (50)
3.625 (50)
3.090 (40)
2.630 (60)

Type Occurrence of Leogangite

General Appearance of Type Material:
Aggregates of thin tabular crystals, flattened on {100} and elongated along [010], measuring up to 0.1 mm in length, 0.05 mm in width and 0.01 mm in thickness.
Geological Setting of Type Material:
Alteration product of arsenic-rich fahlore in vugs of a tennantite-bearing dolomite breccia, intergrown with olivenite and malachite.
Empirical Formula:
Cu9.94[(OH)6|S0.99O4|(As0.99Si0.01O4)4] · 8.89 H2O

Relationship of Leogangite to other Species

8.CC.05Garyansellite(Mg,Fe)3(PO4)2(OH,O) · 1.5H2O
8.CC.05LandesiteMn2+3-xFex3+(PO4)2(OH)x · (3-x)H2O
8.CC.05Phosphoferrite(Fe2+,Mn2+)3(PO4)2 · 3H2O
8.CC.05Reddingite(Mn2+,Fe2+)3(PO4)2 · 3H2O
8.CC.10KaatialaiteFe(H2AsO4)3 · 5H2O

Other Names for Leogangite

Name in Other Languages:
Simplified Chinese:水羟硫砷铜石
Traditional Chinese:水羥硫砷銅石

Other Information

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 Leogangite

Reference List:
Lengauer, C. L., Giester, G. and Kirchner, E. (1998): Cu10(AsO4)4(SO4)(OH)6.8H2O, ein neues Mineral aus Leogang, Österreich. Mitt. Österr. Mineral. Ges. 143, 325-327 (in German).

Lengauer, C. L.; Giester, G.; Kirchner, E. (2004): Leogangite, Cu10(AsO4)4(SO4)(OH)6.8H2O, a new mineral from the Leogang mining district, Salzburg province, Austria. Mineralogy and Petrology 81, 187-201.

Internet Links for Leogangite URL:
Please feel free to link to this page.

Localities for Leogangite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
  • Carinthia
    • Karawanken
      • Finkenstein
        • Mallestiger Mittagskogel
  • Salzburg
    • Saalfelden
      • Leogang
        • Hütten
          • Schwarzleograben
            • Inschlag Alp
C.L. Lengauer, G. Giester, E. Kirchner: Mineralogy and Petrology 81:187-201 (2004)
            • Schwarzleo District
R.Poeverlein (2016)
C.L. Lengauer, G. Giester, E. Kirchner: Mineralogy and Petrology 81:187-201 (2004)
Poeverlein, R. (2008): Euchroit und seine Begleiter vom prähistorischen Bergbau, Leogang, Österreich. Lapis, 33 (5), 13-22.
            • Vogel Alp
Putz, H., Lechner, A., Poeverlein, R. (2005): Leogangit von der Vogelhalt bei Leogang, Salzburg. Lapis 30 (10), 53-55; 90; Brent Thorne collection
  • Tyrol
    • North Tyrol
      • Inn valley
        • Brixlegg - Schwaz area
          • Brixlegg - Rattenberg
            • Geyer - Silberberg District
              • Silberberg
                • West slope ("Am Geyer")
Der Aufschluß (2006)
R. Poeverlein and J. Gröbner (2007): "Der Bergbau Geyer bei Rattenberg in Tirol und seine Mineralien", Lapis 32(2), 34-38.
Schnorrer, G. & Poeverlein, R. (2008): Schwaz-Brixlegger Fundstellen. 6. Die Minerale des Gratlspitz bei Brixlegg in Tirol. Aufschluss 59, 7-28.
C.Auer (2013)
            • St Gertraudi
              • Großkogel (Reither Kogel)
Putz, H. & Poeverlein, R. (2007): Die Mineralien des Gertraudstollens und seiner Halde in St. Gertraudi, Tirol. Lapis 32 (6), 58-63.
          • Schwaz
            • Ringenwechsel District
              • Weißer Schrofen
Schnorrer, G., Poeverlein, R. (2007): Die Minerale des Martinstollens am Weißen Schrofen, Der Aufschluss, Vol. 58, 27-40
        • Wörgl
          • Wildschönau
            • Thierbach
              • Graschberg
R. Poeverlein, J. Gröbner & U. Kolitsch (2010): Mineralien und Bergbau vom Graschberg bei Thierbach in der Tiroler Wildschönau. Lapis 35 (3), 35-40; 54 (in German).
  • North Rhine-Westphalia
    • Siegerland
      • Müsen
Schnorrer, G., Pfeiffer, F. (2008): Leogangit, Cu10[(OH)6|(AsO4)4|(SO4)]•8H2O, ein neues Mineral von der ehemaligen Grube Wildermann in Müsen im Siegerland. Der Aufschluss, 59, 405-408.
  • Catalonia
    • Girona (Gerona)
      • Ripollès
        • Camprodon
          • Rocabruna
Rosell, J. et al. (2014): UK-112: Leogangita de la mina de les Ferreres, Rocabruna, Camprodon, Girona, Catalunya. Infominer, 61 (3/2014).
Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © and the Hudson Institute of Mineralogy 1993-2017, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: July 25, 2017 15:32:38 Page generated: June 27, 2017 09:20:40
Go to top of page