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Galloplumbogummite

A valid IMA mineral species
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About GalloplumbogummiteHide

Formula:
Pb(Ga,Al,Ge)3(PO4)2(OH)6
Also given as Pb(Ga,Al)3-xGexH1-x(PO4)2(OH)6 for 0 <= x <= 1.
Colour:
Colourless to frosted white
Specific Gravity:
4.62 (Calculated)
Crystal System:
Trigonal
Name:
Named for its chemistry and its structural relation to plumbogummite.

The mineral was discovered in a sample bequeathed to the Mineralogical Museum Hamburg by Prof. Dr. Hermann Rose (1883–1976).
Found in the second oxidation zone of the Tsumeb mine. Ga-dominant analogue of plumbogummite.


Unique IdentifiersHide

Mindat ID:
43325
Long-form identifier:
mindat:1:1:43325:9
GUID
(UUID V4):
de0323f8-1b5b-4b77-8f40-13962928da1b

IMA Classification of GalloplumbogummiteHide

Classification of GalloplumbogummiteHide

8.BL.10

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 SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
GpbgIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of GalloplumbogummiteHide

Colour:
Colourless to frosted white
Streak:
White
Density:
4.62 g/cm3 (Calculated)

Chemistry of GalloplumbogummiteHide

Mindat Formula:
Pb(Ga,Al,Ge)3(PO4)2(OH)6

Also given as Pb(Ga,Al)3-xGexH1-x(PO4)2(OH)6 for 0 <= x <= 1.

Crystallography of GalloplumbogummiteHide

Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
R3m
Setting:
R3m
Cell Parameters:
a = 7.083(5) Å, c = 16.742(3) Å
Ratio:
a:c = 1 : 2.364
Unit Cell V:
727.4 ų
Z:
3
Morphology:
Rhombohedral crystals up to 0.15 mm. Its forms are dominated by {h0l} with additional {hkl} or {0kl} and {001}.
Twinning:
None observed.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0020676GalloplumbogummiteSchluter J, Malcherek T, Mihailova B (2014) Galloplumbogummite from Tsumeb, Namibia, a new member of the alunite group with tetravalent charge balance Neues Jahrbuch fur Mineralogie, Abhandlungen 191 301-3092014Tsumeb, Namibia0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.730 Å(100)
3.528 Å(24)
2.983 Å(78)
2.466 Å(12)
2.288 Å(7)
2.225 Å(19)
1.912 Å(17)
1.768 Å(15)

Geological EnvironmentHide

Paragenetic Mode(s):

Type Occurrence of GalloplumbogummiteHide

General Appearance of Type Material:
Found in two millimeter-sized vugs in massive germanite-renierite ore.
Place of Conservation of Type Material:
Type material is deposited in the collections of the Mineralogical Museum of the University of Hamburg, Hamburg, Germany, catalogue number TS 315.
Geological Setting of Type Material:
Second oxidation zone of the Tsumeb ore deposit.
Associated Minerals at Type Locality:
Reference:
Schlüter, J., Malcherek, T., Mihailova, B. (2014): Galloplumbogummite from Tsumeb, Namibia, a new member of the alunite group with tetravalent charge balance. Neues Jahrbuch für Mineralogie - Abhandlungen: 191: 301-309.

Synonyms of GalloplumbogummiteHide

Relationship of Galloplumbogummite to other SpeciesHide

Other Members of this group:
BenauiteSrFe3+3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
CrandalliteCaAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
EylettersiteTh0.75Al3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
Florencite-(Ce)CeAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
Florencite-(La)LaAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
Florencite-(Nd)NdAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
Florencite-(Sm)SmAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
GorceixiteBaAl3(PO4)(PO3OH)(OH)6Mon. m : Bm
GoyaziteSrAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
KintoreitePbFe3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
Kintoreite-2cPbFe3+3(PO4)2(OH,H2O)6
PlumbogummitePbAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
SpringcreekiteBaV3+3(PO4)2(OH,H2O)6Trig. 3m (3 2/m) : R3m
UM2006-23-PO:AlBiCaFeH(Ca,Bi)(Fe,Al)3(PO4)(PO3OH)(OH)6
Unnamed (As-analogue of Zaïrite)(Bi,Pb)Fe3+3(AsO4)2(OH)6
WaylanditeBiAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
ZaïriteBiFe3+3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m

Common AssociatesHide

Associated Minerals Based on Photo Data:
6 photos of Galloplumbogummite associated with GermaniteCu13Fe2Ge2S16
4 photos of Galloplumbogummite associated with OtjisumeitePbGe4O9
3 photos of Galloplumbogummite associated with Renierite(Cu1+,Zn)11Fe4(Ge4+,As5+)2S16
2 photos of Galloplumbogummite associated with ChalcociteCu2S
2 photos of Galloplumbogummite associated with TsumcoritePbZn2(AsO4)2 · 2H2O
1 photo of Galloplumbogummite associated with BorniteCu5FeS4

Related Minerals - Strunz-mindat GroupingHide

8.BL.Graulichite-(La)LaFe3+3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.OberwolfachiteSrFe3+3(AsO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.KiryuiteNaMnAl(PO4)F3Mon. 2/m : P21/m
8.BL.ClouditeBaFe3+3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05BeudantitePbFe3(AsO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05CorkitePbFe3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05HidalgoitePbAl3(AsO4)(SO4)(OH)6Trig. 3m : R3m
8.BL.05HinsdalitePbAl3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05KemmlitziteSrAl3(AsO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05SvanbergiteSrAl3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05WeileriteBaAl3(AsO4)(SO4)(OH)6Hex.
8.BL.05WoodhouseiteCaAl3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05GallobeudantitePbGa3(AsO4)(SO4)(OH)6Trig. 3m : R3m
8.BL.05UM2011-07-POSO:AlBaHBaAl3(PO4)(SO4)(OH)6
8.BL.10ArsenogoyaziteSrAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10ArsenogorceixiteBaAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10ArsenocrandalliteCaAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m)
8.BL.10BenauiteSrFe3+3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10CrandalliteCaAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10DussertiteBaFe3+3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10EylettersiteTh0.75Al3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10GorceixiteBaAl3(PO4)(PO3OH)(OH)6Mon. m : Bm
8.BL.10GoyaziteSrAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10KintoreitePbFe3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10PhilipsbornitePbAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10PlumbogummitePbAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10SegnititePbFe3+3AsO4(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10 vaViséite
8.BL.10SpringcreekiteBaV3+3(PO4)2(OH,H2O)6Trig. 3m (3 2/m) : R3m
8.BL.13Arsenoflorencite-(La)LaAl3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13Arsenoflorencite-(Nd)NdAl3(AsO4)2(OH)6Trig.
8.BL.13Arsenoflorencite-(Ce)CeAl3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13Florencite-(Ce)CeAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13Florencite-(La)LaAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13Florencite-(Nd)NdAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13WaylanditeBiAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13ZaïriteBiFe3+3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13ArsenowaylanditeBiAl3(AsO4)2(OH)6Trig.
8.BL.13Graulichite-(Ce)CeFe3+3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13Florencite-(Sm)SmAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13Unnamed (As-analogue of Zaïrite)(Bi,Pb)Fe3+3(AsO4)2(OH)6
8.BL.15ViitaniemiiteNa(Ca,Mn2+)Al(PO4)(F,OH)3Mon. 2/m : P21/m
8.BL.25PattersonitePbFe3+3(PO4)2(OH)5 · H2OTric. 1 : P1

Fluorescence of GalloplumbogummiteHide

Not fluorescent

Other InformationHide

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 GalloplumbogummiteHide

References for GalloplumbogummiteHide

Localities for GalloplumbogummiteHide

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 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.
Namibia (TL)
 
  • Oshikoto Region
    • Tsumeb
Williams et al. (2011) +1 other reference
 
and/or  
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