Leogangite
A valid IMA mineral species
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About Leogangite
Formula:
Cu10(AsO4)4(SO4)(OH)6 · 8H2O
Colour:
Green with a bluish tint
Lustre:
Vitreous
Specific Gravity:
3.55 (Calculated)
Crystal System:
Monoclinic
Name:
Named for the Leogang mining district that includes the type locality mines at Schwarzleograben, Hütten, Leogang, Saalfelden, Salzburg, Austria.
Unique Identifiers
Mindat ID:
26518
Long-form identifier:
mindat:1:1:26518:0
GUID
(UUID V4):
(UUID V4):
d3d9e473-f7fb-4293-803e-c73e38560592
IMA Classification of Leogangite
Approved
Approval year:
1998
First published:
2004
Classification of Leogangite
8.CC.15
8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
C : With only medium-sized cations, RO4:H2O = 1:1.5
8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
C : With only medium-sized cations, RO4:H2O = 1:1.5
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Lgg | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Leogangite
Vitreous
Transparency:
Transparent
Colour:
Green with a bluish tint
Streak:
Light green
Cleavage:
Perfect
parallel to (100)
parallel to (100)
Density:
3.55 g/cm3 (Calculated)
Optical Data of Leogangite
Type:
Biaxial (-)
RI values:
nω = 1.590 nε = 1.740 n = 1.744
2V:
Measured: 182°
Max Birefringence:
δ = 0.150
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
High
Comments:
Blue-green to pale green.
Chemistry of Leogangite
Mindat Formula:
Cu10(AsO4)4(SO4)(OH)6 · 8H2O
Common Impurities:
Si
Crystallography of Leogangite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 21.770(7) Å, b = 12.327(4) Å, c = 10.720(3) Å
β = 92.85(1)°
β = 92.85(1)°
Ratio:
a:b:c = 1.766 : 1 : 0.87
Unit Cell V:
2873 ų
Z:
4
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0014647 | Leogangite | 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 | 2004 | Leogang polymetallic ore district, Salzburg province, Austria | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
10.85 Å | (100) |
5.44 Å | (50) |
3.625 Å | (50) |
3.090 Å | (40) |
2.630 Å | (60) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 7: Great Oxidation Event | <2.4 |
47a : [Near-surface hydration of prior minerals] | |
47b : [Sulfates and sulfites] | |
47d : [Arsenates, antimonates, selenates, bismuthinates] |
Type Occurrence of Leogangite
Co-Type Localities:
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.
Place of Conservation of Type Material:
Natural History Museum, Vienna, Austria; M8873.
Geological Setting of Type Material:
Alteration product of arsenic-rich fahlore in vugs of a tennantite-bearing dolomite breccia, intergrown with olivenite and malachite.
Associated Minerals at Type Locality:
Reference:
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.
Synonyms of Leogangite
Other Language Names for Leogangite
Common Associates
Related Minerals - Strunz-mindat Grouping
8.CC. | Correianevesite | Fe2+Mn2+2(PO4)2 · 3H2O |
8.CC.05 | Garyansellite | (Mg,Fe)3(PO4)2(OH,O) · 1.5H2O |
8.CC.05 | Kryzhanovskite | (Fe3+,Mn2+)3(PO4)2(OH,H2O)3 |
8.CC.05 | Landesite | Mn2+3-xFe3+x(PO4)2(OH)x · (3-x)H2O |
8.CC.05 | Phosphoferrite | (Fe2+,Mn2+)3(PO4)2 · 3H2O |
8.CC.05 | Reddingite | (Mn2+,Fe2+)3(PO4)2 · 3H2O |
8.CC.10 | Kaatialaite | Fe(H2AsO4)3 · 5H2O |
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.
Internet Links for Leogangite
mindat.org URL:
https://www.mindat.org/min-26518.html
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Please feel free to link to this page.
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References for Leogangite
Reference List:
Kirchner, E., Lengauer, C. L., Giester, G. (2004) Leogangite, Cu10(AsO4)4(SO4)(OH)6·8H2O, a new mineral from the Leogang mining district, Salzburg province, Austria. Mineralogy and Petrology, 81 (1) 187-201 doi:10.1007/s00710-004-0032-x
Localities for Leogangite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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 (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Austria | |
| G.Indra |
| Kirchner et al. (2004) |
| R.Poeverlein (2016) |
| Kirchner et al. (2004) |
Poeverlein (2008) | |
| 90 +2 other references |
| Der Aufschluß (2006) |
Poeverlein et al. (2007) | |
Schnorrer et al. (2008) | |
C.Auer (2013) | |
| Putz et al. (2007) |
| 54 (in German) +1 other reference |
| Schnorrer et al. (2007) |
France | |
| Georges FAVREAU collection and EDX ... |
Germany | |
| Schnorrer et al. (2008) |
Italy | |
| Fernando Caboni et al. (2024) |
Fernando Caboni et al. (2024) | |
Portugal | |
| Pedro Alves analytical data |
Russia | |
| Nenasheva et al. (2011) |
Spain | |
| Uwe Kolitsch (SXRD analysis of Franceso Xavier Ortiz Rua sample) +1 other reference |
Quick NavTopAbout LeogangiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Vogelhalt mining district, Vogel Alp, Schwarzleograben, Hütten, Leogang, Zell am See District, Salzburg, Austria