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Pertlikite

A valid IMA mineral species
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About PertlikiteHide

Formula:
K2(Fe2+,Mg)2Mg4Fe3+2Al(SO4)12 · 18H2O
Colour:
Dark olive green to black
Specific Gravity:
2.59
Crystal System:
Tetragonal
Member of:
Name:
In honour of Franz Pertlik (b. 1943), Professor of Mineralogy and Crystallography, University of Vienna, Austria, in recognition of his extensive work on the crystal chemistry of minerals.
Voltaite Group. Chemically related to magnesiovoltaite. One of a few ferrous-ferric sulfate minerals, by bílinite, copiapite, römerite (purely Fe minerals), metavoltine, and voltaite.

Tetragonal-pseudocubic due to ordering of Fe and Mg.

An apparently cubic (a = 27.220 Å) pertlikite-related mineral with the formula [K0.73(NH4)0.27]2(Mg,Al,Fe)62+(Fe0.93Al0.07)23+Al(SO4)12·18H2O and unknown Fe(II):Fe(III) ratio was described by Witzke et al. (2015).


Unique IdentifiersHide

Mindat ID:
36064
Long-form identifier:
mindat:1:1:36064:3
GUID
(UUID V4):
c71c6d62-e9b2-4899-85ab-1c5f43e99834

IMA Classification of PertlikiteHide

Approved
IMA Formula:
K2(Fe2+,Mg)2(Mg,Fe3+)4Fe3+2Al(SO4)12 · 18H2O
Approval year:
2005
First published:
2008

Classification of PertlikiteHide

7.CC.25

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
C : With medium-sized and large cations
29.9.1.3

29 : HYDRATED ACID AND NORMAL SULFATES
9 : Miscellaneous

Mineral SymbolsHide

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.

SymbolSourceReference
PlkIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
PrtThe Canadian Mineralogist (2019)The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of PertlikiteHide

Colour:
Dark olive green to black
Streak:
Grayish green
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
2.59(3) g/cm3 (Measured)    2.56(1) g/cm3 (Calculated)

Optical Data of PertlikiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.590(2) nε = 1.586(2)
Birefringence:
Very low
Max Birefringence:
δ = 0.004
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemistry of PertlikiteHide

Mindat Formula:
K2(Fe2+,Mg)2Mg4Fe3+2Al(SO4)12 · 18H2O

Crystallography of PertlikiteHide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
I41/acd
Cell Parameters:
a = 19.2080 Å, c = 27.2158 Å
Ratio:
a:c = 1 : 1.417
Unit Cell V:
10,041.19 ų (Calculated from Unit Cell)
Comment:
Pseudocubic.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0006190PertlikiteErtl A, Dyar M D, Hughes J M, Brandstatter F, Gunter M E, Prem M, Peterson R C (2008) Pertlikite, a new tetragonal Mg-rich member of the voltaite group from Madeni Zakh, Iran The Canadian Mineralogist 46 661-6692008Madeni Zakh, Iran0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.543 Å(28)
3.396 Å(100)
3.136 Å(21)
3.038 Å(39)
2.848 Å(31)
2.534 Å(21)
2.078 Å(29)
1.601 Å(21)

Geological EnvironmentHide

Paragenetic Mode(s):

Type Occurrence of PertlikiteHide

General Appearance of Type Material:
Single crystals up to 1 cm.
Place of Conservation of Type Material:
Institute for Mineralogy and Crystallography, University of Vienna, Austria (7813).
National Museum of Natural History, Washington, D.C., USA (NMNH174370).
Museum of Natural History, Harvard University, Cambridge, Massachusetts, USA, (135547).
Geological Setting of Type Material:
Pyrite-bearing trachytic eruptive rock. It probably formed after the decomposition of pyrite.
Associated Minerals at Type Locality:

Synonyms of PertlikiteHide

Relationship of Pertlikite to other SpeciesHide

Member of:
Other Members of this group:
Ammoniomagnesiovoltaite(NH4)2Mg2+5Fe3+3Al(SO4)12 · 18H2OIso. m3m (4/m 3 2/m) : Fd3c
Ammoniovoltaite(NH4)2Fe2+5Fe3+3Al(SO4)12(H2O)18Iso. m3m (4/m 3 2/m) : Fd3c
MagnesiovoltaiteK2Mg5Fe3+3Al(SO4)12 · 18H2OIso. m3m (4/m 3 2/m) : Fd3c
VoltaiteK2Fe2+5Fe3+3Al(SO4)12 · 18H2OIso. m3m (4/m 3 2/m) : Fd3c
ZincovoltaiteK2Zn5Fe3+3Al(SO4)12 · 18H2OIso. m3m (4/m 3 2/m) : Fd3c

Common AssociatesHide

Associated Minerals Based on Photo Data:
3 photos of Pertlikite associated with CoquimbiteAlFe3(SO4)6(H2O)12 · 6H2O
2 photos of Pertlikite associated with AlcaparrosaiteK3Ti4+Fe3+(SO4)4O(H2O)2
1 photo of Pertlikite associated with TamarugiteNaAl(SO4)2 · 6H2O
1 photo of Pertlikite associated with KrausiteKFe(SO4)2 · H2O

Related Minerals - Strunz-mindat GroupingHide

7.CC.CobaltoblöditeNa2Co(SO4)2 · 4H2OMon. 2/m : P21/b
7.CC.AndychristyitePbCu2+Te6+O5(H2O)Tric. 1 : P1
7.CC.Ammoniovoltaite(NH4)2Fe2+5Fe3+3Al(SO4)12(H2O)18Iso. m3m (4/m 3 2/m) : Fd3c
7.CC.05KrausiteKFe(SO4)2 · H2OMon. 2/m : P21/m
7.CC.10TamarugiteNaAl(SO4)2 · 6H2OMon. 2/m : P21/b
7.CC.15KaliniteKAl(SO4)2 · 11H2OMon. 2/m : B2/b
7.CC.15MendoziteNaAl(SO4)2 · 11H2OMon. 2/m : B2/b
7.CC.20Lonecreekite(NH4)Fe3+(SO4)2 · 12H2OIso. m3 (2/m 3) : Pa3
7.CC.20Alum-(K)KAl(SO4)2 · 12H2OIso. m3 (2/m 3) : Pa3
7.CC.20Alum-(Na)NaAl(SO4)2 · 12H2OIso. m3 (2/m 3) : Pa3
7.CC.20Tschermigite(NH4)Al(SO4)2 · 12H2OIso. m3 (2/m 3) : Pa3
7.CC.20LanmuchangiteTl+Al(SO4)2 · 12H2OIso. m3 (2/m 3) : Pa3
7.CC.25VoltaiteK2Fe2+5Fe3+3Al(SO4)12 · 18H2OIso. m3m (4/m 3 2/m) : Fd3c
7.CC.25ZincovoltaiteK2Zn5Fe3+3Al(SO4)12 · 18H2OIso. m3m (4/m 3 2/m) : Fd3c
7.CC.25Ammoniomagnesiovoltaite(NH4)2Mg2+5Fe3+3Al(SO4)12 · 18H2OIso. m3m (4/m 3 2/m) : Fd3c
7.CC.25MagnesiovoltaiteK2Mg5Fe3+3Al(SO4)12 · 18H2OIso. m3m (4/m 3 2/m) : Fd3c
7.CC.30KröhnkiteNa2Cu(SO4)2 · 2H2OMon. 2/m : P21/b
7.CC.35FerrinatriteNa3Fe(SO4)3 · 3H2OTrig. 3 : P3
7.CC.40GoldichiteKFe(SO4)2 · 4H2OMon. 2/m : P21/b
7.CC.45LöweiteNa12Mg7(SO4)13 · 15H2OTrig. 3 : R3
7.CC.50BlöditeNa2Mg(SO4)2 · 4H2OMon. 2/m : P21/b
7.CC.50NickelblöditeNa2(Ni,Mg)(SO4)2 · 4H2OMon. 2/m : P21/b
7.CC.50ChangoiteNa2Zn(SO4)2 · 4H2OMon. 2/m : P21/b
7.CC.55LeoniteK2Mg(SO4)2 · 4H2OMon. 2/m : B2/m
7.CC.55MereiteriteK2Fe(SO4)2 · 4H2OMon. 2/m : B2/m
7.CC.60Boussingaultite(NH4)2Mg(SO4)2 · 6H2OMon. 2/m : P21/b
7.CC.60CyanochroiteK2Cu(SO4)2 · 6H2OMon. 2/m : P21/b
7.CC.60Mohrite(NH4)2Fe(SO4)2 · 6H2OMon. 2/m : P21/b
7.CC.60Nickelboussingaultite(NH4)2Ni(SO4)2 · 6H2OMon. 2/m : P21/b
7.CC.60PicromeriteK2Mg(SO4)2 · 6H2OMon. 2/m : P2/b
7.CC.60NickelpicromeriteK2Ni(SO4)2 · 6H2OMon. 2/m : P21/b
7.CC.60Katerinopoulosite(NH4)2Zn(SO4)2 · 6H2OMon. 2/m : P21/b
7.CC.65PolyhaliteK2Ca2Mg(SO4)4 · 2H2OTric. 1
7.CC.70LeightoniteK2Ca2Cu(SO4)4 · 2H2OMon. 2/m : B2/b
7.CC.75AmarilliteNaFe(SO4)2 · 6H2OMon. 2/m : B2/b
7.CC.80KonyaiteNa2Mg(SO4)2 · 5H2OMon. 2/m : P21/b
7.CC.85WattevilleiteNa2Ca(SO4)2 · 4H2O (?)Orth.
7.CC.85XocolatliteCa2Mn4+2(Te6+O6)2 · H2OMon. 2/m : P2/m
7.CC.90Eckhardite(Ca,Pb)Cu2+Te6+O5(H2O)Mon. 2/m

Fluorescence of PertlikiteHide

Not fluorescent.

Other InformationHide

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 PertlikiteHide

References for PertlikiteHide

Localities for PertlikiteHide

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 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.
Chile
 
  • Antofagasta
    • Antofagasta Province
      • Sierra Gorda
Samples analysed by Tony Kampf (LAC Museum) +5 other references
Costa Rica
 
  • Alajuela Province
    • Sarchí Canton
Rodríguez et al. (2017)
Hungary
 
  • Baranya County
    • Pécs District
Collectors: Gábor Koller & Dávid ...
Iran (TL)
 
  • Hormozgan Province
    • Hajjiabad County
      • Hajjiabad
Ertl +6 other references
Italy
 
  • Campania
    • Naples
      • Pozzuoli
Russo et al. (2017)
Russo et al. (2017)
  • Sicily
    • Metropolitan City of Messina
      • Eolie Islands (Aeolian Islands)
        • Lipari
          • Vulcano Island
            • Porto Levante
              • Faraglioni di Levante
                • Faraglione Nico
Campostrini I. et al - Vulcano: ein ...
Poland
 
  • Silesian Voivodeship
    • Wodzisław County
      • Radlin
Cu +2 other references
 
矿物 and/or 产地  
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