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Maneckiite
A valid IMA mineral species
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About Maneckiite
Andrzej Manecki
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'.
Unique Identifiers
Mindat ID:
46818
Long-form identifier:
mindat:1:1:46818:5
IMA Classification of Maneckiite
Approved
IMA Formula:
(Na◻)Ca2Fe2+2(Fe3+Mg)Mn2+2(PO4)6(H2O)2
Approval year:
2015
First published:
2016
Type description reference:
Pieczka, Adam, Hawthorne, Frank C., Gołębiowska, Bożena, Włodek, Adam, Grochowina, Anna (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 (3) 723-736 doi:10.1180/minmag.2016.080.127
Classification of Maneckiite
8.CF.05
8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
F : With large and medium-sized cations, RO4:H2O > 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
F : With large and medium-sized cations, RO4:H2O > 1:1
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Mnc | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Maneckiite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Łukasz Kruszewski | Poland |
Physical Properties of Maneckiite
Vitreous
Transparency:
Transparent
Colour:
Dark brown
Streak:
Colourless
Hardness:
5 on Mohs scale
Comment:
ca. 5
Tenacity:
Brittle
Cleavage:
Distinct/Good
parallell to{010}
parallell to{010}
Fracture:
Splintery
Density:
3.531 g/cm3 (Calculated)
Optical Data of Maneckiite
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
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Very High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).
Relative to Canada balsam mounting medium (n ≈ 1.537).
This shows the grain boundary and Becke line effect under plane-polarised
light, based on the contrast between this mineral's average refractive
index and the mounting medium. It does not take into account mineral
colouration.
In focus
Interference Figure:
This shows the idealized biaxial acute bisectrix (Bxa) interference figure
- the conoscopic view for a grain cut perpendicular to the acute bisectrix, using
this mineral's 2V. The two small white dots mark the melatopes - the points
where the two optic axes emerge - and are shown only when they fall within the
field of view. The coloured bands are isochromatics, and the dark bands are
isogyres.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
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
Chemistry of Maneckiite
Mindat Formula:
(Na◻)Ca2Fe2+2(Fe3+Mg)Mn2(PO4)6 · 2H2O
Element Weights:
Crystallography of Maneckiite
Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/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 Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.020 Å | (68) |
| 2.942 Å | (29) |
| 2.916 Å | (78) |
| 2.869 Å | (31) |
| 2.844 Å | (35) |
| 2.825 Å | (30) |
| 2.759 Å | (100) |
| 2.121 Å | (30) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 34 : Complex granite pegmatites |
Type Occurrence of Maneckiite
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, Adam, Hawthorne, Frank C., Gołębiowska, Bożena, Włodek, Adam, Grochowina, Anna (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 (3) 723-736 doi:10.1180/minmag.2016.080.127
Synonyms of Maneckiite
Other Language Names for Maneckiite
Dutch:Maneckiiet
German:Maneckiit
Relationship of Maneckiite to other Species
Member of:
Other Members of Wicksite Group:
| Bederite | Ca2(Mn2+)4(Fe3+)2(PO4)6 · 2H2O | Orth. mmm(2/m2/m2/m) |
| Grischunite | NaCa2Mn2+5Fe3+(AsO4)6 · 2H2O | Orth. mmm(2/m2/m2/m) |
| Liraite | NaCa2Mn2+2[Fe3+Fe2+]Mn2+2(PO4)6(H2O)2 | Orth. mm2 |
| Tassieite | (Na,◻)Ca2(Mg,Fe2+,Fe3+)2(Fe2+,Mg)2(Fe3+,Mg)2(PO4)6 · 2H2O | Orth. mmm(2/m2/m2/m) : Pbca |
| Wicksite | NaCa2(Fe2+,Mn2+)4MgFe3+(PO4)6 · 2H2O | Orth. mmm(2/m2/m2/m) : Pbca |
Common Associates
Associations Based on Photo Data:
| 1 photo of Maneckiite associated with Graftonite | Fe2+Fe2+2(PO4)2 |
| 1 photo of Maneckiite associated with Wolfeite | Fe2+2(PO4)(OH) |
| 1 photo of Maneckiite associated with Fluorapatite | Ca5(PO4)3F |
| 1 photo of Maneckiite associated with Alluaudite Group | |
| 1 photo of Maneckiite associated with Sarcopside | Fe2+3(PO4)2 |
| 1 photo of Maneckiite associated with Monazite-(Ce) | Ce(PO4) |
Related Minerals - Strunz-mindat Grouping
| 8.CF. | Ferraioloite | MgMn2+4(Fe2+0.5Al3+0.5)4Zn4(PO4)8(OH)4(H2O)20 |
| 8.CF. | Naalasite | NaAl(AsO3OH)2 · H2O |
| 8.CF. | Nafeasite | Na3Fe3+3(AsO3OH)6 · 3H2O |
| 8.CF. | Falsterite | Ca2MgMn2+2Fe2+2Fe3+2Zn4(PO4)8(OH)4(H2O)14 |
| 8.CF. | Espadaite | Na4Ca3Mg2[AsO3(OH)]2[AsO2(OH)2]10 · 7H2O |
| 8.CF. | Liraite | NaCa2Mn2+2[Fe3+Fe2+]Mn2+2(PO4)6(H2O)2 |
| 8.CF.05 | Tassieite | (Na,◻)Ca2(Mg,Fe2+,Fe3+)2(Fe2+,Mg)2(Fe3+,Mg)2(PO4)6 · 2H2O |
| 8.CF.05 | Bederite | Ca2(Mn2+)4(Fe3+)2(PO4)6 · 2H2O |
| 8.CF.05 | Wicksite | NaCa2(Fe2+,Mn2+)4MgFe3+(PO4)6 · 2H2O |
| 8.CF.05 | Grischunite | NaCa2Mn2+5Fe3+(AsO4)6 · 2H2O |
| 8.CF.10 | Haigerachite | KFe3+3(PO3OH)2[PO2(OH)2]6 · 4H2O |
| 8.CF.10 | Yazganite | NaFe3+2(Mg,Mn2+)(AsO4)3 · H2O |
| 8.CF.15 | Currierite | Na4Ca3MgAl4(AsO3OH)12 · 9H2O |
| 8.CF.20 | Ríosecoite | Ca2Mg(AsO3OH)3(H2O)2 |
Other Information
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.
Internet Links for Maneckiite
mindat.org URL:
https://www.mindat.org/min-46818.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
Mineral Dealers:
References for Maneckiite
Reference List:
Hålenius, U.; Hatert, F.; Pasero, M.; Mills, S. J. (2015) New minerals and nomenclature modifications approved in 2015. Mineralogical Magazine, 79 (5). p.1223-1230. doi:10.1180/minmag.2015.079.5.16
Pieczka, Adam, Hawthorne, Frank C., Gołębiowska, Bożena, Włodek, Adam, Grochowina, Anna (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 (3) 723-736 doi:10.1180/minmag.2016.080.127
Localities for Maneckiite
Showing 2 localities.
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Poland | |
| Pieczka et al. (2017) |
| Hålenius et al. (2015) +2 other references |
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Michałkowa pegmatites, Gmina Świdnica, Świdnica County, Lower Silesian Voivodeship, Poland