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Metathénardite

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About MetathénarditeHide

Formula:
Na2SO4
Colour:
greyish (IMA-approved material); colourless (fresh)
Crystal System:
Hexagonal
Name:
Originally reported by Lacroix (1905) as a hypothetical mineral from Mt. Pelée, Martinique, Lesser Antilles, French West Indies. Approved by IMA in 2016 on submitted material from Glavnaya Tenoritovaya fumarole, Tolbachik volcano, Kamchatka, Russia.
Dimorph of:
A name applied to a high-temperature, hexagonal polymorph of Na2SO4. Approved as a new mineral in 2016.



Classification of MetathénarditeHide

Approved
Approval Year:
2016
7.AC.30

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

Physical Properties of MetathénarditeHide

Colour:
greyish (IMA-approved material); colourless (fresh)

Chemical Properties of MetathénarditeHide

Formula:
Na2SO4
IMA Formula:
Na2(SO4)

Crystallography of MetathénarditeHide

Crystal System:
Hexagonal
Class (H-M):
6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal
Space Group:
P63/mmc
Cell Parameters:
a = 5.3467(9) Å, c = 7.088(2) Å
Ratio:
a:c = 1 : 1.326
Unit Cell V:
175.48 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.667 (27)
3.904 (89)
3.565 (33)
2.824 (94)
2.686 (100)
2.325 (12)
2.203 (10)
1.939 (35)

Type Occurrence of MetathénarditeHide

General Appearance of Type Material:
Grains
Place of Conservation of Type Material:
collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia (registration number 4771/1)
Geological Setting of Type Material:
Volcanic fumaroles

Synonyms of MetathénarditeHide

Related Minerals - Nickel-Strunz GroupingHide

7.AC.Aluminopyracmonite(NH4)3Al(SO4)3Trig. 3 : R3
7.AC.Acmonidesite(NH4,K,Pb)8NaFe2+4(SO4)5Cl8Orth. 2 2 2 : C2 2 21
7.AC.05VanthoffiteNa6Mg(SO4)4Mon. 2/m : P21/b
7.AC.08Pyracmonite(NH4)3Fe(SO4)3Trig. 3m : R3c
7.AC.10Efremovite(NH4)2Mg2(SO4)3Iso.
7.AC.10LangbeiniteK2Mg2(SO4)3Iso. 2 3 : P21 3
7.AC.10ManganolangbeiniteK2Mn2(SO4)3Iso. 2 3 : P21 3
7.AC.15YavapaiiteKFe(SO4)2Mon. 2/m : B2/m
7.AC.15EldfelliteNaFe3+(SO4)2Mon. 2/m : B2/m
7.AC.20Godovikovite(NH4)Al(SO4)2Trig. 3 2 : P3 2 1
7.AC.20Sabieite(NH4)Fe3+(SO4)2Trig. 3 2 : P3 2 1
7.AC.25ThénarditeNa2SO4Orth. mmm (2/m 2/m 2/m) : Fddd
7.AC.35Aphthitalite(K,Na)3Na(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 MetathénarditeHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Lacroix (1905) Bulletin de la Société française de Minéralogie: 23: 65.
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 407.
Pekov, I.V., Gurzhiy, V.V., Zubkova, N.V., Agakhanov, A.A., Belakovskiy, D.I., Vigasina, M.F. Sidorov, E.G. (2016): Metathénardite, IMA 2015-102. CNMNC Newsletter No. 30,April 2016, page 408; Mineralogical Magazine: 80: 407–413

Internet Links for MetathénarditeHide

Localities for MetathénarditeHide

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.
France
 
  • French West Indies
    • Martinique
      • Saint-Pierre
Palache, Charles, Harry Berman & Clifford Frondel (1951), Dana's System of Mineralogy, 7th edition, Volume 2: 407.
Iceland
 
  • Southern Region
    • Vestmannaeyjar archipelago (Westman islands)
      • Heimaey island
Mitolo, D., Garavelli, A., Pedersen, L., Balić-Žunić, T., Jakobsson, S.P., Vurro, F. (2008): Mineralogy of actually forming sublimates at Eldfell Volcano, Heimaey (Vestmannaeyjar archipelago), Iceland. Plinius, 34, 322.
Russia (TL)
 
  • Far-Eastern Region
    • Kamchatka Oblast'
      • Tolbachik volcano
        • Great Fissure eruption (Main Fracture)
          • Northern Breakthrough (North Breach)
            • Second scoria cone
Pekov, I.V., Zubkova, N.V., Zolotarev, A.A., Yapaskurt, V.O., Krivovichev, S.V., Belakovskiy, D.I., Lykova, I.S., Vigasina, M.F., Kasatkin, A.V., Sidorov, E.G., Pushcharovsky, D.Y. (2016) Dioskouriite, IMA 2015-106. CNMNC Newsletter No. 30, April 2016, page 409; Mineralogical Magazine: 80: 407–413.
Mineral and/or Locality  
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