Stanĕkite (original) (raw)

A valid IMA mineral species

About StanĕkiteHide

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Formula:

(Mn2+,Fe2+,Mg)Fe3+(PO4)O

Crystal System:

Monoclinic

Name:

Named in honor of Josef Stanĕk (1928 - 13 September 2019), Professor of Mineralogy, Masarykov University, Brno, Czech Republic, a specialist in phosphate mineralogy.

Wagnerite Group.

Two polytypes are known: Ma2bc (type material) and Mabc (space group _I_2/a; Keller et al., 2005).

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:7310:9

e8cc098a-611a-4249-88d7-02e576bd8a4e

IMA Classification of StanĕkiteHide

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IMA Formula:

Fe3+Mn2+O(PO4)

Type description reference:

Keller, Paul, Fontan, François, Velasco Roldan, Francisco, Melgarejo I Draper, Joan Carles (1997) Staněkite, Fe3+(Mn,Fe2+,Mg)(PO4): a new phosphate mineral in pegmatites at Karibib (Namibia) and French Pyrénées (France) European Journal of Mineralogy, 9 (3) 475-482 doi:10.1127/ejm/9/3/0475

Classification of StanĕkiteHide

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8.BB.15

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1

41.6.3.4

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
6 : A2(XO4)Zq

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.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

Physical Properties of StanĕkiteHide

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Density:

0\3.80 g/cm3 (Measured) 4.09 g/cm3 (Calculated)

Optical Data of StanĕkiteHide

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RI values:

_n_α = 2.010 _n_β = 2.110

δ = 2.010

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

Anisotropism:

In air, moderate. In oil, distinct and pale brownish-grey colours are visible.

Colour in reflected light:

Pale gray

Internal Reflections:

Distinct. Reddish yellow to brownish-red.

Comments:

In oil, darker than in air, with a blue-grey hue

Chemistry of StanĕkiteHide

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Mindat Formula:

(Mn2+,Fe2+,Mg)Fe3+(PO4)O

Crystallography of StanĕkiteHide

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Polytype:

Formula:

Crystal System:

Class (H-M)

Space Group:

Space Group Setting:

Cell Parameters:

Ratio:

Unit Cell Volume (calc):

Z:

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of StanĕkiteHide

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Place of Conservation of Type Material:

University of Stuttgart and at the Musee de l'Ecole des Mines de Paris (no T 45634).

Associated Minerals at Type Locality:

Reference:

Keller, P., Fontan, F., Velasco-Roldan, F., Melgarejo i Draper, J. C. (1997) Stanĕkite, Fe3+(Mn,Fe2+,Mg)(PO4)O: a new phosphate mineral in pegmatites at Karibib (Namibia) and French Pyrénées (France). European Journal of Mineralogy: 9: 475-482.

Synonyms of StanĕkiteHide

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Other Language Names for StanĕkiteHide

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Relationship of Stanĕkite to other SpeciesHide

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Other Members of this group:

Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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Fluorescence of StanĕkiteHide

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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 StanĕkiteHide

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References for StanĕkiteHide

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Reference List:

Keller, Paul, Fontan, François, Velasco Roldan, Francisco, Melgarejo I Draper, Joan Carles (1997) Staněkite, Fe3+(Mn,Fe2+,Mg)(PO4): a new phosphate mineral in pegmatites at Karibib (Namibia) and French Pyrénées (France) European Journal of Mineralogy, 9 (3) 475-482 doi:10.1127/ejm/9/3/0475

Keller, Paul, Lissner, Falk, Schleid, Thomas (2006) The crystal structure of stanekite, (Fe3+,Mn2+,Fe2+,Mg)2[PO4]O, from Okatjimukuju, Karibib (Namibia), and its relationship to the polymorphs of synthetic Fe2[PO4]O. European Journal of Mineralogy, 18 (1) 113-118 doi:10.1127/0935-1221/2006/0018-0113

Keller, Paul, Lissner, Falk, Schleid, Thomas (2007) The crystal structure of joosteite, (Mn2+,Mn3+,Fe3+)2[PO4]O, from the Helikon II Mine, Karibib (Namibia), and its relationship to staneěkite, (Fe3+,Mn2+,Fe2+,Mg)2[PO4]O. Neues Jahrbuch für Mineralogie - Abhandlungen, 184 (2) 225-230 doi:10.1127/0077-7757/2007/0095

Localities for StanĕkiteHide

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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.