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Mereiterite

A valid IMA mineral species
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About MereiteriteHide

01509680015139114531926.jpg
Dr. Kurt Mereiter
Formula:
K2Fe(SO4)2 · 4H2O
Colour:
Pale yellow
Lustre:
Vitreous, Greasy
Hardness:
2½ - 3
Specific Gravity:
2.36
Crystal System:
Monoclinic
Member of:
Name:
Named after Prof. Dr. Kurt Mereiter (1945-), Technical University of Vienna, in honour of his contributions to the crystal chemistry of various iron sulfates.
The iron analogue of Leonite.

May possibly appear as a dehydration product of the (unstable at room temperature) picromerite-type hexahydrate (a Tutton salt).




Unique IdentifiersHide

Mindat ID:
2649
Long-form identifier:
mindat:1:1:2649:5
GUID
(UUID V4):
fa3527fe-9db0-4e85-92ee-bf3b7800dd6d

Classification of MereiteriteHide

Approved
7.CC.55

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
C : With medium-sized and large cations
28.4.3.3

28 : ANHYDROUS ACID AND NORMAL SULFATES
4 : Miscellaneous

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
MtrIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of MereiteriteHide

Vitreous, Greasy
Transparency:
Transparent
Colour:
Pale yellow
Streak:
White
Hardness:
2½ - 3 on Mohs scale
Density:
2.36(1) g/cm3 (Measured)    2.358 g/cm3 (Calculated)

Optical Data of MereiteriteHide

Type:
Biaxial (+)
RI values:
nα = 1.497(1) nβ = 1.501(1) nγ = 1.509(1)
2V:
Measured: 73° , Calculated: 72°
Max Birefringence:
δ = 0.012
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
very weak: r > v

Chemical Properties of MereiteriteHide

Formula:
K2Fe(SO4)2 · 4H2O
IMA Formula:
K2Fe2+(SO4)2 · 4H2O

Crystallography of MereiteriteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 11.844(1) Å, b = 9.556(1) Å, c = 9.947(1) Å
β = 94.87°
Ratio:
a:b:c = 1.239 : 1 : 1.041
Unit Cell V:
1,121.75 ų (Calculated from Unit Cell)
Z:
4

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0002733MereiteriteHertweck B, Giester G, Libowitzky E (2001) The crystal structures of the low-temperature phases of leonite-type compounds, K2Me(SO4)2.4H2O (Me=Mg,Mn,Fe) American Mineralogist 86 1282-129220010185
0002734MereiteriteHertweck B, Giester G, Libowitzky E (2001) The crystal structures of the low-temperature phases of leonite-type compounds, K2Me(SO4)2.4H2O (Me=Mg,Mn,Fe) American Mineralogist 86 1282-129220010293
0006597MereiteriteGiester G, Rieck B (1995) Mereiterite, K2Fe[SO4]2.4H2O, a new leonite-type mineral from the Lavrion Mining District, Greece European Journal of Mineralogy 7 559-5661995Lavrion Mining District, Greece0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.440 Å(100)
3.505 Å(52)
3.490 Å(49)
3.331 Å(48)
4.778 Å(30)
2.405 Å(30)
3.051 Å(29)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47b : [Sulfates and sulfites]

Type Occurrence of MereiteriteHide

General Appearance of Type Material:
Crystals are subhedral, strongly etched, to 1 cm
Place of Conservation of Type Material:
University of Vienna, Vienna, Austria, 6C/18-035#1; National Museum of Natural History, Washington, D.C., USA, 170971.
Associated Minerals at Type Locality:
Reference:
Giester, G. and Rieck, B. (1995) Mereiterite, K2Fe[SO4]2•4H2O, a new leonite-type mineral from the Lavrion mining district, Greece. European Journal of Mineralogy 7, 559-566.

Synonyms of MereiteriteHide

Other Language Names for MereiteriteHide

Relationship of Mereiterite to other SpeciesHide

Member of:
Other Members of this group:
LeoniteK2Mg(SO4)2 · 4H2OMon. 2/m : B2/m

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.25PertlikiteK2(Fe2+,Mg)2Mg4Fe3+2Al(SO4)12 · 18H2OTet. 4/mmm (4/m 2/m 2/m) : I41/acd
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.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

Other InformationHide

Notes:
Soluble in H2O
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 MereiteriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Giester, G. and Rieck, B. (1995) Mereiterite, K2Fe[SO4]2•4H2O, a new leonite-type mineral from the Lavrion mining district, Greece. European Journal of Mineralogy 7, 559-566.
Mineralogical Record 27: 304.

Internet Links for MereiteriteHide

Localities for MereiteriteHide

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.
Canada
 
  • Ontario
    • Greater Sudbury
      • McKim Township
Schindler, M., Mantha, N., Kyser, K. T., Murayama, M., & Hochella Jr, M. F. (2012). Shining light on black rock coatings in smelter-impacted areas. Geoscience Canada, 39(3).
Greece (TL)
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion Mining District
          • Agios Konstantinos (Kamariza)
            • Kamariza Mines (Kamareza Mines)
Giester, G. and Rieck, B. (1995) Mereiterite, K2Fe[SO4]2•4H2O, a new leonite-type mineral from the Lavrion mining district, Greece. European Journal of Mineralogy 7, 559-566.; Mineralogical Record 27: 304.; Giester, G. and Rieck, B. (1995) Mereiterite, K2Fe[SO4]2•4H2O, a new leonite-type mineral from the Lavrion mining district, Greece. European Journal of Mineralogy 7, 559-566.
Italy
 
  • Campania
    • Naples
      • Pozzuoli
Russo, M., Campostrini, I., Demartin, F. (2017): I minerali di origine fumarolica dei Campi Flegrei: Solfatara di Pozzuoli (Napoli) e dintorni. Micro, 15, 122-192.; Mormone, A., Piochi, M., Balassone, G., Strauss, H., Troise, C., & De Natale, G. (2015, April). Mineralogical and sulfur isotopic characterization of the sulfur-bearing mineralization from the active degassing area of Campi Flegrei caldera (southern Italy). In EGU General Assembly Conference Abstracts (Vol. 17).
Nicaragua
 
  • León Department
Hynek, B. M., McCollom, T. M., Marcucci, E. C., Brugman, K., & Rogers, K. L. (2013). Assessment of environmental controls on acid‐sulfate alteration at active volcanoes in Nicaragua: Applications to relic hydrothermal systems on Mars. Journal of Geophysical Research: Planets, 118(10), 2083-2104.
Poland
 
  • Silesian Voivodeship
    • Rybnik
      • Niedobczyce
Kruszewski, Ł., Fabiańska, M.J., Segit, T., Kusy, D., Motyliński, R., Ciesielczuk, J., Deput, E., (2019): Carbon-nitrogen compounds, alcohols, mercaptans, monoterpenes, acetates, aldehydes, ketones, SF6, PH3, and other fire gases in coal-mining waste heaps of Upper Silesian Coal Basin (Poland) – a re-investigation by means of in situ FTIR external database approach. Science of The Total Environment (in press)
 
Mineral and/or Locality  
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