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Maneckiite

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Formula:
(Na◻)Ca2Fe2+2(Fe3+Mg)Mn2(PO4)6 · 2H2O
Colour:
Dark brown
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
3.531 (Calculated)
Crystal System:
Orthorhombic
Member of:
Name:
After prof. Andrzej Manecki (born 1933 in Cracow, Poland), which work is connected with the AGH University of Science and Technology, a member (Polish representative) of the Cosmomineralogy Commision of the IMA (1974–1988), also the Polish representative in the IMA Comission on New Minerals and Mineral Names in 1988
The M(3)Mn analogue of wicksite. The element combination (in terms of element dominance) is only shared with 'Mg-Fillowite'.


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Classification of ManeckiiteHide

Approved
Approval Year:
2015
First Published:
2016

Pronounciation of ManeckiiteHide

Pronounciation:
PlayRecorded byCountry
Łukasz KruszewskiPoland

Physical Properties of ManeckiiteHide

Vitreous
Transparency:
Transparent
Colour:
Dark brown
Streak:
Colourless
Hardness:
Comment:
ca. 5
Tenacity:
Brittle
Cleavage:
Distinct/Good
parallell to{010}
Fracture:
Splintery
Density:
3.531 g/cm3 (Calculated)

Optical Data of ManeckiiteHide

Type:
Biaxial (+)
RI values:
nα = 1.698(2) nβ = 1.706(2) nγ = 1.727(2)
2V:
Measured: 65.9° , Calculated: 64°
Birefringence:
~0.03
Max Birefringence:
δ = 0.029
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
obscured by the dark colour
Pleochroism:
Visible
Comments:
dark green (α), dark blue/green (β), light brown/tan (γ)
Comments:
orientation: X||a, Y||b, Z||c

Chemical Properties of ManeckiiteHide

Formula:
(Na◻)Ca2Fe2+2(Fe3+Mg)Mn2(PO4)6 · 2H2O

Crystallography of ManeckiiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pbca
Cell Parameters:
a = 12.526(4) Å, b = 12.914(5) Å, c = 11.664(4) Å
Ratio:
a:b:c = 0.97 : 1 : 0.903
Unit Cell V:
1886.8 ų
Z:
4
Comment:
Pcab

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.020(68)
2.942(29)
2.916(78)
2.869(31)
2.844(35)
2.825(30)
2.759(100)
2.121(30)

Occurrences of ManeckiiteHide

Paragenetic Mode(s):

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Type Occurrence of ManeckiiteHide

General Appearance of Type Material:
Subhedral or anhedral crystals, ca. 150 × 150 μm
Place of Conservation of Type Material:
Cotype material is deposited in the collections of the Mineralogical Museum, University of Wrocław, Cybulskiego 30, 50-205 Wrocław, Poland, catalogue number MMWr IV7674 and MMWr IV7676.
Geological Setting of Type Material:
Outer zone of phosphate nodules in a pegmatite; results from Na- and Ca-metasomatism from a high-temperature fluid with parallel presence of Al ions coming from an aluminosilicate melt occurring in the vicinity
Associated Minerals at Type Locality:
Reference:
Pieczka, A., Hawthorne, F.C., Gołębiowska, B., Włodek, A., Grochowina, A. (2017): Maneckiite, ideally NaCa2Fe2+2(Fe3+Mg)Mn2(PO4)6(H2O)2, a new phosphate mineral of the wicksite supergroup from the Michałkowa pegmatite, Góry Sowie block, southwestern Poland. Mineralogical Magazine: 81: 723-736.

Synonyms of ManeckiiteHide

Other Language Names for ManeckiiteHide

Relationship of Maneckiite to other SpeciesHide

Member of:
Other Members of this group:
BederiteCa2(Mn2+)4(Fe3+)2(PO4)6 · 2H2OOrth.
GrischuniteNaCa2Mn2+5Fe3+(AsO4)6 · 2H2OOrth.
Tassieite(Na,◻)Ca2(Mg,Fe2+,Fe3+)2(Fe2+,Mg)2(Fe3+,Mg)2(PO4)6 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
WicksiteNaCa2(Fe2+,Mn2+)4MgFe3+(PO4)6 · 2H2OOrth. mmm (2/m 2/m 2/m)

Other InformationHide

Notes:
Gladstone-Dale index: 0.027 ("excellent")
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 ManeckiiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Pieczka, A., Hawthorne, F.C., Gołębiowska, B. and Włodek, A. (2015) Maneckiite, IMA 2015-056. CNMNC Newsletter No. 27, October 2015, page 1227; Mineralogical Magazine: 79: 1229–1236.
Pieczka, A., Hawthorne, F.C., Gołębiowska, B., Włodek, A., Grochowina, A. (2016): Maneckiite, ideally NaCa2Fe2+2(Fe3+Mg)Mn2(PO4)6(H2O)2, a new phosphate mineral of the wicksite supergroup from the Michałkowa pegmatite, Góry Sowie block, southwestern Poland. Mineralogical Magazine: 81: 723-736.

Internet Links for ManeckiiteHide

Localities for ManeckiiteHide

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.
Poland (TL)
 
  • Lower Silesia (Dolnośląskie)
    • Sudetes Mts
      • Sowie Mts
        • Michałkowa (Michelsdorf)
Pieczka, A., Hawthorne, F.C., Gołębiowska, B. and Włodek, A. (2015) Maneckiite, IMA 2015-056. CNMNC Newsletter No. 27, October 2015, page 1227; Mineralogical Magazine, 79, 1229–1236.; Pieczka, A., Hawthorne, F.C., Gołębiowska, B., Włodek, A., Grochowina, A. (2016): Maneckiite, ideally NaCa2Fe2+2(Fe3+Mg)Mn2(PO4)6(H2O)2, a new phosphate mineral of the wicksite supergroup from the Michałkowa pegmatite, Góry Sowie block, southwestern Poland. Mineralogical Magazine: 80: (in press
Mineral and/or Locality  
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