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Kamitugaite

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About KamitugaiteHide

Kamituga
Formula:
PbAl[(UO2)5(PO4)2.38(AsO4)0.62O2(OH)2] · 11.5H2O
Formula inferred from the crystal structure refinement (Plášil 2017).
Colour:
Yellow
Crystal System:
Triclinic
Name:
Named in 1984 by M. Deliens and P. Piret for Kamituga, the mining center of Kivu, near the type locality.
This page provides mineralogical data about Kamitugaite.


Classification of KamitugaiteHide

Approved
Approval Year:
1983
7/E.07-110
8.ED.15

8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
D : Unclassified
42.13.11.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
13 : Miscellaneous
19.10.3

19 : Phosphates
10 : Phosphates of Pb, Th, V and Bi

Physical Properties of KamitugaiteHide

Colour:
Yellow

Optical Data of KamitugaiteHide

Type:
Biaxial (-)
RI values:
nα = 1.709 nβ = 1.735 nγ = 1.744
2V:
Measured: 60° , Calculated: 60°
Max Birefringence:
δ = 0.035
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r > v weak

Chemical Properties of KamitugaiteHide

Formula:
PbAl[(UO2)5(PO4)2.38(AsO4)0.62O2(OH)2] · 11.5H2O

Formula inferred from the crystal structure refinement (Plášil 2017).
IMA Formula:
PbAl(UO2)5(PO4)2(OH)9 · 9.5H2O

Crystallography of KamitugaiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Setting:
P1
Cell Parameters:
a = 9.0296(8) Å, b = 10.9557(8) Å, c = 15.8249(15) Å
α = 89.585(7)°, β = 85.349(8)°, γ = 84.251(7)°
Ratio:
a:b:c = 0.824 : 1 : 1.444
Unit Cell V:
1,552.48 ų (Calculated from Unit Cell)

Type Occurrence of KamitugaiteHide

Synonyms of KamitugaiteHide

Other Language Names for KamitugaiteHide

German:Kamitugait
Spanish:Kamitugaita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Muscovite1 photo of Kamitugaite associated with Muscovite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.ED.05MoreauiteAl3(UO2)(PO4)3(OH)2 · 13H2O
8.ED.10AsselbornitePb(BiO)3(UO2)4(AsO4)2(OH)7·4H2OIso.
8.ED.10MetalodèviteZn(UO2)2(AsO4)2 · 10H2OTet.
8.ED.10ŠreinitePb(BiO)3(UO2)4(PO4)2(OH)7·4H2OIso. m3m (4/m 3 2/m) : Im3m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

19.10.1OxypyromorphitePb10(PO4)6O
19.10.2PlumbogummitePbAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
19.10.5DrugmanitePb2(Fe3+,Al)(PO4)(PO3OH)(OH)2Mon. 2/m : P21/b
19.10.6BrabantiteCaTh(PO4)2Mon.
19.10.8Grayite(Th,Pb,Ca)(PO4) · H2OHex. 6 2 2 : P62 2 2
19.10.9Brockite(Ca,Th,Ce)PO4 · H2OHex. 6 2 2 : P62 2 2
19.10.10SincositeCa(VO)2(PO4)2 · 5H2OTet. 4/mmm (4/m 2/m 2/m) : P42/nnm
19.10.11XimengiteBi(PO4)Trig.
19.10.12Paulkellerite(BiO)2Fe3+(PO4)(OH)2Mon. 2/m : B2/b

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.

References for KamitugaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Deliens, M., Piret, P. (1984) La kamitugaïte, PbAl(UO2)5[(P,As)O4]2(OH)9.9,5 H2O, nouveau minéral de Kobokobo, Kivu, Zaïre. Bulletin de la Société française de Minéralogie et de Cristallographie: 107: 15-19.
Dunn, P.J., Gobel, V., Grice, J.D., Puziewicz, J., Shigley, J.E., Vanko, D.A., Zilczer, J. (1985) New mineral names. American Mineralogist: 70: 436-441.
Plášil, J. (2017) A novel sheet topology in the structure of kamitugaite, PbAl[(UO2)5(PO4)2.38(AsO4)0.62O2(OH)2](H2O)11.5. Journal of Gesociences, 62, 253–260.

Internet Links for KamitugaiteHide

Localities for KamitugaiteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Democratic Republic of the Congo (TL)
 
  • Sud-Kivu
    • Mwenga
Bull.Minéral.(1984) 107, 15-19
USA
 
  • Arizona
    • Maricopa Co.
      • Big Horn Mts
        • Osborn District
          • Tonopah
            • Belmont Mountain
              • Tiger Wash
Grant, Raymond W., Bideaux, R.A., and Williams, S.A. (2006) Minerals Added to the Arizona List 1995-2005: 5; pers. comm. Josef Vajdak to C. Lemanski, Jr. (2002).
Mineral and/or Locality  
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