IMPORTANT MESSAGE. We need your support now to keep mindat.org running. Click here to find out why.
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for Educators
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Mereiterite

This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About MereiteriteHide

Dr. Kurt Mereiter
Formula:
K2Fe(SO4)2 · 4H2O
Colour:
Pale yellow
Lustre:
Vitreous, Greasy
Hardness:
2½ - 3
Crystal System:
Monoclinic
Member of:
Name:
Named after Prof. Dr. Kurt Mereiter, 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).




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

Physical Properties of MereiteriteHide

Vitreous, Greasy
Colour:
Pale yellow
Streak:
White
Hardness:
2½ - 3 on Mohs scale

Optical Data of MereiteriteHide

Type:
Biaxial (+)
RI values:
nα = 1.497 nβ = 1.501 nγ = 1.509
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

Chemical Properties of MereiteriteHide

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

Crystallography of MereiteriteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 11.84 Å, b = 9.55 Å, c = 9.94 Å
β = 94.87°
Ratio:
a:b:c = 1.24 : 1 : 1.041
Unit Cell V:
1,119.88 ų (Calculated from Unit Cell)

Type Occurrence of MereiteriteHide

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

Related Minerals - Nickel-Strunz GroupingHide

7.CC.CobaltoblöditeNa2Co(SO4)2•4H2OMon. 2/m : P21/b
7.CC.AndychristyitePbCu2+Te6+O5(H2O)Tric. 1 : P1
7.CC.05KrausiteKFe(SO4)2 · H2OMon. 2/m : P21/m
7.CC.10TamarugiteNaAl(SO4)2 · 6H2OMon. 2/m
7.CC.15KaliniteKAl(SO4)2 · 11H2OMon. 2/m : B2/b
7.CC.15MendoziteNaAl(SO4)2 · 11H2OMon. 2/m
7.CC.20Lonecreekite(NH4)Fe3+(SO4)2 · 12H2OIso.
7.CC.20Alum-(K)KAl(SO4)2 · 12H2OIso. m3 (2/m 3) : Pa3
7.CC.20Alum-(Na)NaAl(SO4)2 · 12H2O
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.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.
7.CC.50BlöditeNa2Mg(SO4)2 · 4H2OMon. 2/m
7.CC.50NickelblöditeNa2(Ni,Mg)(SO4)2 · 4H2O
7.CC.50ChangoiteNa2Zn(SO4)2 · 4H2OMon. 2/m : P21/b
7.CC.55LeoniteK2Mg(SO4)2 · 4H2OMon. 2/m
7.CC.60Boussingaultite(NH4)2Mg(SO4)2 · 6H2OMon. 2/m : P21/b
7.CC.60CyanochroiteK2Cu(SO4)2 · 6H2OMon. 2/m
7.CC.60Mohrite(NH4)2Fe(SO4)2 · 6H2OMon. 2/m : P21/b
7.CC.60Nickelboussingaultite(NH4)2Ni(SO4)2 · 6H2O
7.CC.60PicromeriteK2Mg(SO4)2 · 6H2OMon. 2/m
7.CC.65PolyhaliteK2Ca2Mg(SO4)4 · 2H2OTric. 1
7.CC.70LeightoniteK2Ca2Cu(SO4)4 · 2H2OTric.
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.

Related Minerals - Dana Grouping (8th Ed.)Hide

28.4.3.1Palmierite(K,Na)2Pb(SO4)2Trig. 3m (3 2/m) : R3m
28.4.3.2KalistrontiteK2Sr(SO4)2Trig.

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.

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

ⓘ - 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.
Greece (TL)
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium; Lavreotiki Municipality)
      • Lavrion District Mines
        • Agios Konstantinos [St Constantine] (Kamariza)
          • Kamariza Mines (Kamareza Mines)
            • Hilarion area
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.
Italy
 
  • Campania
    • Phlegrean Volcanic Complex
      • Naples Province
        • Phlegrean Fields
          • 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.
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.
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2018, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 19, 2018 20:47:54 Page generated: October 17, 2018 09:45:19
Go to top of page