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Mössbauerite

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About MössbaueriteHide

Rudolf Ludwig Mössbauer
Formula:
Fe3+6O4(OH)8[CO3] · 3H2O
Colour:
Blue-green
Lustre:
Earthy
Hardness:
2 - 3
Specific Gravity:
2.950 (Calculated)
Crystal System:
Trigonal
Name:
Named after Professor Rudolf Ludwig Mössbauer ( 31 January 1929 Munich – 14 September 2011 Grünwald, Germany) who discovered the resonance of γ rays that bears his name, for which he was awarded the 1961 Nobel Prize in physics. Without this technique, the very existence of this mineral in gleysols and the true nature of the ‘green rust’ compounds could not be understood
Hydrotalcite supergroup. It has a layered double hydroxide-type structure, in which brucite-like layers [Fe3+6O4(OH)8]2+ are intercalated with CO32- anions and water molecules.

The fully oxidized analogue of fougèrite and trébeurdenite, related to them chemically by the exchange of (Fe3+O2−) with (Fe2+OH−).

Synchrotron X-ray data indicate that the natural material is a nanoscale intergrowth of 2T and 3T polytypes; the latter probably has the 3T7 stacking sequence.


Classification of MössbaueriteHide

Approved
Approval Year:
2012

Physical Properties of MössbaueriteHide

Earthy
Transparency:
Opaque
Colour:
Blue-green
Comment:
Pure synthetic mössbauerite is orange in colour
Hardness:
2 - 3 on Mohs scale
Comment:
Probably 2-3
Tenacity:
Sectile
Cleavage:
Perfect
{0001} ideally
Density:
2.950 g/cm3 (Calculated)

Chemical Properties of MössbaueriteHide

Formula:
Fe3+6O4(OH)8[CO3] · 3H2O
IMA Formula:
Fe3+6O4(OH)8(CO3) · 3H2O

Crystallography of MössbaueriteHide

Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Cell Parameters:
a = 3.032(7) Å, b = 3.079 Å, c = 22.258(4) Å
Ratio:
a:b:c = 0.985 : 1 : 7.229
Unit Cell V:
177.20 ų (Calculated from Unit Cell)
Comment:
Possible space group: P3İm1 and P3m1

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.372(60)
3.691(20)
2.646(100)
2.588(70)
2.406(40)
1.928(30)
1.855(50)
Comments:
From Type Description.

Type Occurrence of MössbaueriteHide

General Appearance of Type Material:
As μm-scale platelets in gleys with restricted access to atmospheric O.
Place of Conservation of Type Material:
Museum Victoria, Melbourne, Australia, registration number M52078
Geological Setting of Type Material:
Intimately intergrown with trébeurdenite, was discovered in intertidal gleys from Mont Saint-Michel Bay, France.
Associated Minerals at Type Locality:

Synonyms of MössbaueriteHide

Relationship of Mössbauerite to other SpeciesHide

Other Members of this group:
FougèriteFe2+4Fe3+2(OH)12[CO3]·3H2OTrig. 3m (3 2/m) : R3m
TrébeurdeniteFe2+2Fe3+4O2(OH)10CO3·3H2OTrig. 3m (3 2/m) : R3m

Common AssociatesHide

Associated Minerals Based on Photo Data:
Trébeurdenite2 photos of Mössbauerite associated with Trébeurdenite on mindat.org.

Other InformationHide

Notes:
Special Storage/
Display Requirements:
Decomposes rapidly when exposed to air.
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 MössbaueriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Mills, S.J., Christy, A.G., Genin, J.-M.R., Kameda, T., Colombo, F. (2012): Nomenclature of the hydrotalcite supergroup: natural layered double hydroxides. Mineralogical Magazine, 76, 1289-1336.
Génin, J.-M.R., Mills, S.J., Christy, A.G., Guérin, O., Herbillon, A.J., Kuzmann, E., Morin, G., Ona-Nguema, G., Ruby, C. and Upadhyay, C. (2013) Mössbauerite, IMA 2012-049. CNMNC Newsletter No. 15, February 2013, page 3; Mineralogical Magazine, 77, 1-12.
Génin, J.-M.R., Mills, S.J., Christy, A.G., Guérin, O., Herbillon, A.J., Kuzmann, E., Ona-Nguema, G., Ruby, C., Upadhyay, C. (2014): Mössbauerite, Fe3+6O4(OH)8(CO3)∙3H2O, the fully oxidized ‘green rust’ mineral from Mont Saint-Michel Bay, France. Mineralogical Magazine, 78, 447-465.
Mills, S.J. (2016) To rust or not to rust : la trébeurdenite et la mössbauerite, deux nouvelles espèces de Bretagne et Normandie. Le Cahier des Micromonteurs, 131, 3–7.

Internet Links for MössbaueriteHide

Localities for MössbaueriteHide

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
 
  • Brittany
    • Côtes-d'Armor
      • Lancieux
Génin, J. M., Mills, S. J., Christy, A. G., Guérin, O., Herbillon, A. J., Kuzmann, E., ... & Upadhyay, C. (2014). Mössbauerite, Fe3+ 6O4 (OH) 8 [CO3]· 3H2O, the fully oxidized'green rust'mineral from Mont Saint-Michel Bay, France. Mineralogical Magazine, 78(2), 447-465.
      • Pleumeur-Bodou
        • Penvern
Mills, S.J., Christy, A.G., Genin, J.-M.R., Kameda, T., Colombo, F. (2012): Nomenclature of the hydrotalcite supergroup: natural layered double hydroxides. Mineralogical Magazine, 76, 1289-1336.
      • Plougrescant
Génin, J. M., Mills, S. J., Christy, A. G., Guérin, O., Herbillon, A. J., Kuzmann, E., ... & Upadhyay, C. (2014). Mössbauerite, Fe3+ 6O4 (OH) 8 [CO3]· 3H2O, the fully oxidized'green rust'mineral from Mont Saint-Michel Bay, France. Mineralogical Magazine, 78(2), 447-465.
      • Trébeurden
Personal communication from geologist Odile Guérin to Erik Vercammen (August 2016)
      • Trédrez-Locquémeau
Génin, J. M., Mills, S. J., Christy, A. G., Guérin, O., Herbillon, A. J., Kuzmann, E., ... & Upadhyay, C. (2014). Mössbauerite, Fe3+ 6O4 (OH) 8 [CO3]· 3H2O, the fully oxidized'green rust'mineral from Mont Saint-Michel Bay, France. Mineralogical Magazine, 78(2), 447-465.
    • Ille-et-Vilaine
      • Mont Saint-Michel Bay
Génin, J.-M.R., Mills, S.J., Christy, A.G., Guérin, O., Herbillon, A.J., Kuzmann, E., Morin, G., Ona-Nguema, G., Ruby, C. and Upadhyay, C. (2013) Mössbauerite, IMA 2012-049. CNMNC Newsletter No. 15, February 2013, page 3; Mineralogical Magazine, 77, 1-12; Génin, J.-M.R., Mills, S.J., Christy, A.G., Guérin, O., Herbillon, A.J., Kuzmann, E., Ona-Nguema, G., Ruby, C., Upadhyay, C. (2014): Mössbauerite, Fe3+6O4(OH)8(CO3)∙3H2O, the fully oxidized ‘green rust’ mineral from Mont Saint-Michel Bay, France. Mineralogical Magazine, 78, 447-465.
      • Saint-Malo
Génin, J. M., Mills, S. J., Christy, A. G., Guérin, O., Herbillon, A. J., Kuzmann, E., ... & Upadhyay, C. (2014). Mössbauerite, Fe3+ 6O4 (OH) 8 [CO3]· 3H2O, the fully oxidized'green rust'mineral from Mont Saint-Michel Bay, France. Mineralogical Magazine, 78(2), 447-465.
  • Normandy
    • Manche
Génin, J. M., Mills, S. J., Christy, A. G., Guérin, O., Herbillon, A. J., Kuzmann, E., ... & Upadhyay, C. (2014). Mössbauerite, Fe3+ 6O4 (OH) 8 [CO3]· 3H2O, the fully oxidized'green rust'mineral from Mont Saint-Michel Bay, France. Mineralogical Magazine, 78(2), 447-465.
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