Kamitugaite (original) (raw)

A valid IMA mineral species

About KamitugaiteHide

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Formula:

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

Formula inferred from the crystal structure refinement (Plášil 2017).

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.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:2148:3

d6f02f22-530d-4c13-b44e-63351436ebf7

IMA Classification of KamitugaiteHide

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IMA Formula:

PbAl(UO2)5(PO4)3O2(OH)2(H2O)11.5

Type description reference:

Classification of KamitugaiteHide

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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

Mineral SymbolsHide

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

Physical Properties of KamitugaiteHide

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Density:

4.03 g/cm3 (Measured) 4.47 g/cm3 (Calculated)

Optical Data of KamitugaiteHide

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RI values:

_n_α = 1.709 _n_β = 1.735 _n_γ = 1.744

2V:

Measured: 60° , Calculated: 60°

δ = 0.035

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Comments:

X = colorless, Y = yellow

Comments:

X ≃ b∗; Y ∧ a = 1◦–2◦; Z ⊥ a and b∗.

Chemistry of KamitugaiteHide

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Mindat Formula:

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

Formula inferred from the crystal structure refinement (Plášil 2017).

Crystallography of KamitugaiteHide

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Class (H-M):

1 - Pinacoidal

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)

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of KamitugaiteHide

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General Appearance of Type Material:

Thin plates with a maximum length of 0.5 mm.

Place of Conservation of Type Material:

Royal Museum of Central Africa, Tervuren, Belgium, RMG13985, RMG13986

Geological Setting of Type Material:

Quartz-albite-muscovite pegmatite.

Associated Minerals at Type Locality:

Reference:

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.

Synonyms of KamitugaiteHide

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Other Language Names for KamitugaiteHide

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Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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Other InformationHide

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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 KamitugaiteHide

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References for KamitugaiteHide

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Reference List:

Dunn, Pete J., Gobel, Volker, Grice, Joel D., Puziewicz, Jacek, Shigley, James E., Vanko, David A., Zilczer, Janet (1985) New mineral names. American Mineralogist, 70 (3-4) 436-441

Localities for KamitugaiteHide

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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

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- 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.