Kenoplumbomicrolite (original) (raw)

A valid IMA mineral species

About KenoplumbomicroliteHide

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Formula:

(Pb,◻)2Ta2O6(◻,OH,O)

Specific Gravity:

7.310 - 7.832

Name:

Named according to the pyrochlore supergroup nomenclature (Atencio et al. 2010). Keno is Greek for empty, for the vacant ionic position, plumbo is derived from the Latin for lead, and the microlite part of the name is for the relationship to that mineral group.

Orginally published as a possible new species; published structure determination ( Atencio et al. 2010, Christy et al. 2013). Approved by IMA as a valid, new species in 2016.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:40357:7

8e7c12d9-5539-4d25-b77c-690e5a668514

IMA Classification of KenoplumbomicroliteHide

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IMA Formula:

(Pb,◻)2Ta2O6[◻,(OH),O]

Type description reference:

Atencio, D., Andrade, M.B., Bindi, L., Bonazzi, P., Zoppi, M., Stanley, C.J., Kristiansen, R. (2018): Kenoplumbomicrolite, (Pb,?)2Ta2O6[?,(OH),O], a new mineral from Ploskaya, Kola Peninsula, Russia. Mineralogical Magazine, 82: 1049-1055

Classification of KenoplumbomicroliteHide

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4.DH.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
H : With large (+- medium-sized) cations; sheets of edge-sharing octahedra

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 KenoplumbomicroliteHide

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Density:

7.310 - 7.832 g/cm3 (Measured)

Comment:

The measurements of density were affected by presence of uraninite inclusions

Optical Data of KenoplumbomicroliteHide

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Chemistry of KenoplumbomicroliteHide

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Mindat Formula:

(Pb,◻)2Ta2O6(◻,OH,O)

Chemical AnalysisHide

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Empirical formulas:

Sample references:

Crystallography of KenoplumbomicroliteHide

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Cell Parameters:

a = 10.575(5) Å

Morphology:

Octahedral, cuboctahedral crystals, up to 20 cm

Comment:

Spacegroup: Fd-3m

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of KenoplumbomicroliteHide

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General Appearance of Type Material:

Yellowish brown octahedral, cuboctahedral and massive crystals, up to 20 cm

Place of Conservation of Type Material:

Mineralogical collections of the Museu de Geociências, Instituto de Geociências, Universidade de São Paulo, Rua do Lago 562, 05508–080 São Paulo, Brazil (registration number DR980)

Empirical Formula of Type Material:

(Pb1.33◻0.66Mn0.01)Σ2.00(Ta0.87Nb0.72Sn4+0.18Fe3+0.11W0.08Ti0.04)Σ2.00O6[◻0.80(OH)0.10O0.10]Σ1.00

Geological Setting of Type Material:

Associated Minerals at Type Locality:

Reference:

Atencio, D., Andrade, M.B., Bindi, L., Bonazzi, P., Zoppi, M., Stanley, C.J., Kristiansen, R. (2018): Kenoplumbomicrolite, (Pb,□)2Ta2O6[□,(OH),O], a new mineral from Ploskaya, Kola Peninsula, Russia. Mineralogical Magazine, 82: 1049-1055

Synonyms of KenoplumbomicroliteHide

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Relationship of Kenoplumbomicrolite to other SpeciesHide

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Other Members of this group:

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 KenoplumbomicroliteHide

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References for KenoplumbomicroliteHide

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Reference List:

Atencio, D., Andrade, M. B., Christy, A. G., Giere, R., Kartashov, P. M. (2010) The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist, 48 (3) 673-698 doi:10.3749/canmin.48.3.673

Atencio, D., Andrade, M.B., Bindi, L., Bonazzi, P., Zoppi, M., Stanley, C.J., Kristiansen, R. (2018): Kenoplumbomicrolite, (Pb,?)2Ta2O6[?,(OH),O], a new mineral from Ploskaya, Kola Peninsula, Russia. Mineralogical Magazine, 82: 1049-1055

Localities for KenoplumbomicroliteHide

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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.