Gallobeudantite
A valid IMA mineral species
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About Gallobeudantite
Formula:
PbGa3(AsO4)(SO4)(OH)6
Colour:
Pale yellow, greenish, or cream-colored
Lustre:
Vitreous
Hardness:
4
Specific Gravity:
4.87 (Calculated)
Crystal System:
Trigonal
Member of:
Name:
For gallium and the relationship to beudantite.
Isostructural with:
This page provides mineralogical data about Gallobeudantite.
Unique Identifiers
Mindat ID:
6962
Long-form identifier:
mindat:1:1:6962:1
IMA Classification of Gallobeudantite
Approved
IMA Formula:
Pb2+Ga3+3(As5+O4)(S6+O4)(OH)6
Approval year:
1994
First published:
1996
Classification of Gallobeudantite
8.BL.05
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
L : With medium-sized and large cations, (OH, etc.):RO4 = 3:1
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
L : With medium-sized and large cations, (OH, etc.):RO4 = 3:1
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 for Standard |
|---|---|---|
| Gbdn | 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 Gallobeudantite
Vitreous
Transparency:
Transparent
Colour:
Pale yellow, greenish, or cream-colored
Streak:
Pale yellow, white
Hardness:
4 on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
Fracture:
Conchoidal
Comment:
Fracture even to conchoidal.
Density:
4.87 g/cm3 (Calculated)
Comment:
Calculated density, in type ref, given as 4.61 in abstract and 4.87 in body of text.
Optical Data of Gallobeudantite
Type:
Uniaxial (-)
RI values:
nω = 1.763 nε = 1.750
Max. Birefringence:
δ = 0.013
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Moderate
Pleochroism:
Non-pleochroic
Chemistry of Gallobeudantite
Mindat Formula:
PbGa3(AsO4)(SO4)(OH)6
Element Weights:
Crystallography of Gallobeudantite
Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
R3m
Cell Parameters:
a = 7.225(4) Å, c = 17.03(2) Å
Ratio:
a:c = 1 : 2.357
Unit Cell V:
769.88 ų (Calculated from Unit Cell)
Z:
3
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) |
|---|---|---|---|---|---|---|---|
| 0005521 | Gallobeudantite | Jambor J L, Owens D R, Grice J D, Feinglos M N (1996) Gallobeudantite, PbGa3[(AsO4),(SO4)]2(OH)6, a new mineral species from Tsumeb, Namibia, and associated new gallium analogues of the alunite - jarosite family The Canadian Mineralogist 34 1305-1315 |  | 1996 | Tsumeb, Namibia | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.038 Å | (100) |
| 5.85 Å | (90) |
| 3.59 Å | (40) |
| 2.271 Å | (40) |
| 2.851 Å | (30) |
| 2.513 Å | (30) |
| 1.948 Å | (30) |
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 Gallobeudantite
General Appearance of Type Material:
Zoned rhombohedra up to 200 µm along an edge.
Place of Conservation of Type Material:
Canadian Museum of Nature, Ottawa, 81518; Canadian Geological Survey, Ottawa, Canada.
Geological Setting of Type Material:
In massive Cu-bearing sulfide in deposit rich in gallium.
Associated Minerals at Type Locality:
Synonyms of Gallobeudantite
Other Language Names for Gallobeudantite
Relationship of Gallobeudantite to other Species
Member of:
Other Members of Beudantite Group:
| Beudantite | PbFe3+3(AsO4)(SO4)(OH)6 | Trig. 3m(32/m) : R3m |
| Cloudite | BaFe3+3(PO4)(SO4)(OH)6 | Trig. 3m(32/m) : R3m |
| Corkite | PbFe3+3(PO4)(SO4)(OH)6 | Trig. 3m(32/m) : R3m |
| Hidalgoite | PbAl3(AsO4)(SO4)(OH)6 | Trig. 3m : R3m |
| Hinsdalite | PbAl3(PO4)(SO4)(OH)6 | Trig. 3m(32/m) : R3m |
| Kemmlitzite | SrAl3(AsO4)(SO4)(OH)6 | Trig. 3m(32/m) : R3m |
| Oberwolfachite | SrFe3+3(AsO4)(SO4)(OH)6 | Trig. 3m(32/m) : R3m |
| Slottaite | SrFe3+3(PO4)(SO4)(OH)6 | Trig. 3m(32/m) : R3m |
| Svanbergite | SrAl3(PO4)(SO4)(OH)6 | Trig. 3m(32/m) : R3m |
| 'UM2011-07-POSO:AlBaH' | BaAl3(PO4)(SO4)(OH)6 | |
| 'Unnamed (Fe-analogue of Weilerite and Ba-analogue of Oberwolfachite)' | BaFe3(AsO4)(SO4)(OH)6 | |
| Weilerite | BaAl3(AsO4)(SO4)(OH)6 | Hex. |
| Woodhouseite | CaAl3(PO4)(SO4)(OH)6 | Trig. 3m(32/m) : R3m |
Common Associates
Associations Based on Photo Data:
| 1 photo of Gallobeudantite associated with Niedermayrite | CdCu4(SO4)2(OH)6 · 4H2O |
| 1 photo of Gallobeudantite associated with Cerussite | PbCO3 |
Related Minerals - Strunz-mindat Grouping
| 8.BL. | Kiryuite | NaMnAl(PO4)F3 |
| 8.BL. | Metaheimite | PbCu2(AsO4)(OH)3 |
| 8.BL. | Graulichite-(La) | LaFe3+3(AsO4)2(OH)6 |
| 8.BL. | Cloudite | BaFe3+3(PO4)(SO4)(OH)6 |
| 8.BL. | Oberwolfachite | SrFe3+3(AsO4)(SO4)(OH)6 |
| 8.BL. | Arsenobenauite | SrFe3+3(AsO4)(AsO3OH)(OH)6 |
| 8.BL.05 | Slottaite | SrFe3+3(PO4)(SO4)(OH)6 |
| 8.BL.05 | Corkite | PbFe3+3(PO4)(SO4)(OH)6 |
| 8.BL.05 | Hidalgoite | PbAl3(AsO4)(SO4)(OH)6 |
| 8.BL.05 | Hinsdalite | PbAl3(PO4)(SO4)(OH)6 |
| 8.BL.05 | 'UM2011-07-POSO:AlBaH' | BaAl3(PO4)(SO4)(OH)6 |
| 8.BL.05 | Kemmlitzite | SrAl3(AsO4)(SO4)(OH)6 |
| 8.BL.05 | Beudantite | PbFe3+3(AsO4)(SO4)(OH)6 |
| 8.BL.05 | Weilerite | BaAl3(AsO4)(SO4)(OH)6 |
| 8.BL.05 | Woodhouseite | CaAl3(PO4)(SO4)(OH)6 |
| 8.BL.05 | Svanbergite | SrAl3(PO4)(SO4)(OH)6 |
| 8.BL.10 | Segnitite | PbFe3+3AsO4(AsO3OH)(OH)6 |
| 8.BL.10 | Arsenogoyazite | SrAl3(AsO4)(AsO3OH)(OH)6 |
| 8.BL.10 | Arsenogorceixite | BaAl3(AsO4)(AsO3OH)(OH)6 |
| 8.BL.10 | Dussertite | BaFe3+3(AsO4)(AsO3OH)(OH)6 |
| 8.BL.10 | Galloplumbogummite | Pb(Ga,Al,Ge)3(PO4)2(OH)6 |
| 8.BL.10 | Stibiosegnitite | Pb(Fe3+2.5Sb5+0.5)(AsO4)2(OH)6 |
| 8.BL.10 va | 'Viséite' | |
| 8.BL.10 | Arsenocrandallite | CaAl3(AsO4)(AsO3OH)(OH)6 |
| 8.BL.10 | Benauite | SrFe3+3(PO4)(PO3OH)(OH)6 |
| 8.BL.10 | Philipsbornite | PbAl3(AsO4)(AsO3OH)(OH)6 |
| 8.BL.10 | Crandallite | CaAl3(PO4)(PO3OH)(OH)6 |
| 8.BL.10 | Springcreekite | BaV3+3(PO4)2(OH,H2O)6 |
| 8.BL.10 | Eylettersite | Th0.75Al3(PO4)2(OH)6 |
| 8.BL.10 | Kintoreite | PbFe3(PO4)(PO3OH)(OH)6 |
| 8.BL.10 | Plumbogummite | PbAl3(PO4)(PO3OH)(OH)6 |
| 8.BL.10 | Gorceixite | BaAl3(PO4)(PO3OH)(OH)6 |
| 8.BL.10 | Goyazite | SrAl3(PO4)(PO3OH)(OH)6 |
| 8.BL.13 | Florencite-(Ce) | CeAl3(PO4)2(OH)6 |
| 8.BL.13 | Florencite-(La) | LaAl3(PO4)2(OH)6 |
| 8.BL.13 | Florencite-(Nd) | NdAl3(PO4)2(OH)6 |
| 8.BL.13 | Zaïrite | BiFe3+3(PO4)2(OH)6 |
| 8.BL.13 | Arsenoflorencite-(La) | LaAl3(AsO4)2(OH)6 |
| 8.BL.13 | 'Arsenoflorencite-(Nd)' | NdAl3(AsO4)2(OH)6 |
| 8.BL.13 | 'Unnamed (As-analogue of Zaïrite)' | (Bi,Pb)Fe3+3(AsO4)2(OH)6 |
| 8.BL.13 | Arsenoflorencite-(Ce) | CeAl3(AsO4)2(OH)6 |
| 8.BL.13 | Graulichite-(Ce) | CeFe3+3(AsO4)2(OH)6 |
| 8.BL.13 | 'Arsenowaylandite' | BiAl3(AsO4)2(OH)6 |
| 8.BL.13 | Waylandite | BiAl3(PO4)2(OH)6 |
| 8.BL.13 | Florencite-(Sm) | SmAl3(PO4)2(OH)6 |
| 8.BL.15 | Viitaniemiite | Na(Ca,Mn2+)Al(PO4)(F,OH)3 |
| 8.BL.25 | Pattersonite | PbFe3+3(PO4)2(OH)5 · H2O |
Fluorescence of Gallobeudantite
Nonfluorescent
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 Gallobeudantite
mindat.org URL:
https://www.mindat.org/min-6962.html
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References for Gallobeudantite
Localities for Gallobeudantite
Showing 1 localities.
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The 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).
All localities listed without proper references should be considered as questionable.
Namibia (TL) | |
| Jambor et al. (1996) |
Quick NavTopAbout GallobeudantiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatFluorescence Other InformationInternet Links References Localities Locality List
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia