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Althupite

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Formula:
AlTh(UO2)7(PO4)4(OH)5O2 · 15H2O
Colour:
Yellow
Lustre:
Vitreous, Sub-Vitreous
Hardness:
3½ - 4
Specific Gravity:
3.91
Crystal System:
Triclinic
Name:
Named in 1987 by Paul Piret and Michel Deliens for its constituent elements: Al, Th, U and P.
This page provides mineralogical data about Althupite.


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Classification of AlthupiteHide

Approved
Approval Year:
1986
7/E.07-130
8.EC.25

8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
C : UO2:RO4 = 3:2
42.4.13.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
4 : (AB)5(XO4)2Zq·xH2O
19.11.33

19 : Phosphates
11 : Phosphates of U

Physical Properties of AlthupiteHide

Vitreous, Sub-Vitreous
Transparency:
Transparent
Colour:
Yellow
Streak:
Yellow
Hardness:
3½ - 4 on Mohs scale
Tenacity:
Flexible
Density:
3.91 g/cm3 (Measured)    3.98 g/cm3 (Calculated)

Optical Data of AlthupiteHide

Type:
Biaxial (-)
RI values:
nα = 1.620 nβ = 1.661 nγ = 1.665
2V:
Measured: 31° , Calculated: 34°
Birefringence:
0.045
Max Birefringence:
δ = 0.045
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v strong
Optical Extinction:
Z ^ c = 15°, X ~ a
Pleochroism:
Visible
Comments:
X = very pale yellow, Y = Z = yellow

Chemical Properties of AlthupiteHide

Formula:
AlTh(UO2)7(PO4)4(OH)5O2 · 15H2O
IMA Formula:
AlTh(UO2)7(PO4)4O2(OH)5 · 15H2O

Crystallography of AlthupiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Setting:
P1
Cell Parameters:
a = 10.953 Å, b = 18.567 Å, c = 13.504 Å
α = 72.64°, β = 68.20°, γ = 84.21°
Ratio:
a:b:c = 0.59 : 1 : 0.727
Unit Cell V:
2,433.54 ų (Calculated from Unit Cell)
Z:
2
Morphology:
As thin tabular crystals, flattened on {100} and terminated by {011} and {021}, to 0.1 mm, and in parallel groups.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
10.2 (100)
6.67 (40)
5.80 (50)
5.09 (70)
4.91 (40)
4.41 (50)
2.896 (50)

Type Occurrence of AlthupiteHide

Place of Conservation of Type Material:
Royal Museum of Central Africa, Tervuren, Belgium, RMG6178.
Geological Setting of Type Material:
A secondary mineral in the uraniferous zone of an altered granite pegmatite.
Associated Minerals at Type Locality:

Synonyms of AlthupiteHide

Other Language Names for AlthupiteHide

German:Althupit
Spanish:Althupita

Related Minerals - Nickel-Strunz GroupingHide

8.EC.05Françoisite-(Nd)(Nd,Ce,Sm)(UO2)3(PO4)2O(OH) · 6H2OMon.
8.EC.05PhuralumiteAl2(UO2)3(PO4)3(OH)2 · 13H2OMon.
8.EC.05UpaliteAl(UO2)3(PO4)2O(OH) · 7H2OMon.
8.EC.05Françoisite-(Ce)(Ce,Nd,Ca)(UO2)3(PO4)2O(OH) · 6H2OMon. 2/m : P21/b
8.EC.10ArsenuranyliteCa(UO2)4(AsO4)2(OH)4 · 6H2OOrth.
8.EC.10DewindtiteH2Pb3(UO2)2(PO4)4O4 · 12H2OOrth. mmm (2/m 2/m 2/m) : Cmma
8.EC.10Kivuite(Th,Ca,Pb)(UO2)4(HPO4)2(OH)8 · 7H2O
8.EC.10Phosphuranylite(H3O)3KCa(UO2)7(PO4)4O4 · 8H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
8.EC.10YingjiangiteK2Ca(UO2)7(PO4)4(OH)6 · 6H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
8.EC.15DumontitePb2(UO2)3(PO4)2(OH)4 · 3H2OMon. 2/m : P21/m
8.EC.15HügelitePb2(UO2)3(AsO4)2O2 · 5H2OMon.
8.EC.20MetavanmeersscheiteU6+(UO2)3(PO4)2(OH)6 · 2H2OOrth. mmm (2/m 2/m 2/m) : Fddd
8.EC.20VanmeersscheiteU6+(UO2)3(PO4)2(OH)6 · 4H2OOrth.
8.EC.20ArsenovanmeersscheiteU4+(UO2)3(AsO4)2(OH)2 · 4H2OOrth. mm2 : Pmn21
8.EC.30MunditeAl(UO2)3(PO4)2(OH)3 · 5.5H2OOrth.
8.EC.35PhurcaliteCa2(UO2)3(PO4)2O2 · 7H2OOrth.
8.EC.40BergeniteCa2Ba4(UO2)9(PO4)6O6 · 16H2OMon. 2/m : P21/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

19.11.1LermontoviteU(PO4)(OH) · H2OOrth. mmm (2/m 2/m 2/m) : Ccca
19.11.2MetavanmeersscheiteU6+(UO2)3(PO4)2(OH)6 · 2H2OOrth. mmm (2/m 2/m 2/m) : Fddd
19.11.3VanmeersscheiteU6+(UO2)3(PO4)2(OH)6 · 4H2OOrth.
19.11.4Chernikovite(H3O)2(UO2)2(PO4)2 · 6H2OTet.
19.11.5VyacheslaviteU(PO4)(OH) · nH2OOrth.
19.11.6MetanatroautuniteNa(UO2)(PO4)(H2O)3Tet. 4/mmm (4/m 2/m 2/m) : P4/ncc
19.11.7YingjiangiteK2Ca(UO2)7(PO4)4(OH)6 · 6H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
19.11.8Meta-ankoleiteK2(UO2)2(PO4)2 · 6H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
19.11.9Uramphite(NH4)2(UO2)2(PO4)2 · 6H2OTet.
19.11.10TorberniteCu(UO2)2(PO4)2 · 12H2OTet. 4/mmm (4/m 2/m 2/m) : I4/mmm
19.11.11MetatorberniteCu(UO2)2(PO4)2 · 8H2OTet. 4/m : P4/n
19.11.12SaléeiteMg(UO2)2(PO4)2 · 10H2OMon. 2/m : P21/b
19.11.13NingyoiteCaU(PO4)2 · 1-2H2OOrth.
19.11.14Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2OTet. 4/mmm (4/m 2/m 2/m)
19.11.15AutuniteCa(UO2)2(PO4)2 · 11H2OOrth. mmm (2/m 2/m 2/m) : Pnma
19.11.16Pseudo-autunite(H3O)4Ca2(UO2)2(PO4)4 · 5H2OOrth.
19.11.17PhurcaliteCa2(UO2)3(PO4)2O2 · 7H2OOrth.
19.11.18Phosphuranylite(H3O)3KCa(UO2)7(PO4)4O4 · 8H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
19.11.19UlrichiteCaCu(UO2)(PO4)2 · 4H2OMon.
19.11.20BergeniteCa2Ba4(UO2)9(PO4)6O6 · 16H2OMon. 2/m : P21/b
19.11.21Metauranocircite-IBa(UO2)2(PO4)2 · 7H2OMon. 2 : P21
19.11.22UranocirciteBa(UO2)2(PO4)2 · 10H2OTet.
19.11.23RanunculiteHAl(UO2)(PO4)(OH)3 · 4H2OMon.
19.11.24TrianguliteAl3(UO2)4(PO4)4(OH)5 · 5H2OTric.
19.11.25MunditeAl(UO2)3(PO4)2(OH)3 · 5.5H2OOrth.
19.11.26UpaliteAl(UO2)3(PO4)2O(OH) · 7H2OMon.
19.11.27FurongiteAl13(UO2)7(PO4)13(OH)14 · 58H2OTric. 1 : P1
19.11.28ThreadgolditeAl(UO2)2(PO4)2(OH) · 8H2OMon.
19.11.29PhuralumiteAl2(UO2)3(PO4)3(OH)2 · 13H2OMon.
19.11.30MoreauiteAl3(UO2)(PO4)3(OH)2 · 13H2O
19.11.31SabugaliteHAl(UO2)4(PO4)4 · 16H2OMon. 2/m : B2/m
19.11.32Uranospathite(Al,☐)(UO2)2(PO4)2F · 20(H2O,F)Orth. mm2 : Pnn2
19.11.34Françoisite-(Nd)(Nd,Ce,Sm)(UO2)3(PO4)2O(OH) · 6H2OMon.
19.11.35Kivuite(Th,Ca,Pb)(UO2)4(HPO4)2(OH)8 · 7H2O
19.11.36ParsonsitePb2(UO2)(PO4)2Tric. 1 : P1
19.11.37DewindtiteH2Pb3(UO2)2(PO4)4O4 · 12H2OOrth. mmm (2/m 2/m 2/m) : Cmma
19.11.38DumontitePb2(UO2)3(PO4)2(OH)4 · 3H2OMon. 2/m : P21/m
19.11.39PrzhevalskitePb2(UO2)3(PO4)2(OH)4 · 3H2OOrth.
19.11.40LehneriteMn2+(UO2)2(PO4)2 · 8H2OMon.
19.11.41BassetiteFe2+(UO2)2(PO4)2 · 10H2OMon. 2/m
19.11.42Vochtenite(Fe2+,Mg)Fe3+(UO2)4(PO4)4(OH) · 12-13H2OMon.

Fluorescence of AlthupiteHide

Apparently not fluorescent

Other InformationHide

Notes:
radioactive
Health Risks:
Contains uranium - always wash hands after handling. Avoid inhaling dust when handling or breaking. Never lick or ingest. Avoid prolonged exposure in proximity of the body. Store away from inhabited areas.

References for AlthupiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Piret, P., Deliens, M. (1987) Les phosphates d'uranyle et d'aluminium de Kobokobo IX. L'althupite AlTh(UO2)[(UO2)3O(OH)PO4)2]2(OH)3·15H2O, nouveau mineral; properties et structures cristalline. Bulletin de Minéralogie: 110: 65-72.
Hawthorne, F.C., Burke, E.A.J., Ercit, T.S., Grew, E.S., Grice, J.D., Jambor, J.L., Puziewicz, J., Roberts, A.C., Vanko, D.A. (1988) New mineral names. American Mineralogist: 73: 189-199.
Burns, P.C. (2005) U 6+ minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. The Canadian Mineralogist: 43: 1839-1894.

Internet Links for AlthupiteHide

Localities for AlthupiteHide

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

(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.
Democratic Republic of Congo (Zaïre) (TL)
 
  • Sud-Kivu
    • Mwenga
Bull.Mineral.(1987) 110, 65-72
Mineral and/or Locality  
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