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Meisserite

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About MeisseriteHide

Formula:
Na5(UO2)(SO4)3(SO3OH)(H2O)
Colour:
Pale green to yellowish green
Hardness:
2
Specific Gravity:
3.208 (Calculated)
Crystal System:
Triclinic
Name:
Named in honour of Nicolas Meisser (b. 1964), Swiss mineralogist and Curator of Mineralogy and Petrography, Cantonal Museum of Geology, Lausanne, Switzerland.
The crystal structure of meisserite is topologically unique among known structures of uranyl minerals and inorganic compounds.

Structurally related to fermiite.


Classification of MeisseriteHide

Approved
Approval Year:
2013

Physical Properties of MeisseriteHide

Transparency:
Transparent, Translucent
Colour:
Pale green to yellowish green
Streak:
Very pale yellow
Hardness:
Comment:
Estimated
Tenacity:
Brittle
Cleavage:
Imperfect/Fair
on {100} and {001}
Fracture:
Irregular/Uneven
Density:
3.208 g/cm3 (Calculated)

Optical Data of MeisseriteHide

Type:
Biaxial (-)
RI values:
nα = 1.514(1) nβ = 1.546(1) nγ = 1.557(1)
2V:
Measured: 60° (2), Calculated: 60°
Max Birefringence:
δ = 0.043
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
r > v, perceptible
Pleochroism:
Visible
Comments:
With X (colourless) < Y (pale yellow) ≈ Z (pale greenish yellow)

Chemical Properties of MeisseriteHide

Formula:
Na5(UO2)(SO4)3(SO3OH)(H2O)

Crystallography of MeisseriteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 5.32317(10) Å, b = 11.5105(2) Å, c = 13.5562(10) Å
α = 102.864(7)°, β = 97.414(7)°, γ = 91.461(6)°
Ratio:
a:b:c = 0.462 : 1 : 1.178
Unit Cell V:
801.74 ų
Z:
2
Morphology:
Prisms elongated on [100], up to 0.3 mm long, exhibiting the forms {010} and {001}.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
13.15(81)
6.33(62)
5.64(52)
5.24(100)
4.67(68)
3.849(48)
2.969(93)
1.918(47)
Comments:
From Type Description.

Type Occurrence of MeisseriteHide

General Appearance of Type Material:
A secondary mineral formed by the post-mining weathering of uraninite.
Place of Conservation of Type Material:
Type material is deposited in the collections of the the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 4410/1, the Natural History Museum of Los Angeles County, Los Angeles, California, USA, catalogue
Associated Minerals at Type Locality:

Synonyms of MeisseriteHide

Fluorescence of MeisseriteHide

Bright yellow green fluorescence under both long- and shortwave UV radiation.

Other InformationHide

Notes:
Somewhat hygroscopic and easily soluble in water.
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 MeisseriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Plášil, J., Kampf, A.R., Kasatkin, A.V., Silva, S., Marty, J., Škoda R. and Čejka, J. (2013) Meisserite, IMA 2013-039. CNMNC Newsletter No. 17, October 2013, page 2999; Mineralogical Magazine, 77, 2997-3005.
Plášil, j.,Kampf, A.R., Kasatkin, A.V., Marty, J., Škoda, R., Silva, S. & Čejka, J. (2013): Meisserite, Na5(UO2)(SO4)3(SO3OH)(H2O), a new uranyl sulfate mineral from the Blue Lizard mine, San Juan County, Utah, USA. Mineralogical Magazine. 77, 2975-2988.

Internet Links for MeisseriteHide

Localities for MeisseriteHide

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.
USA (TL)
 
  • Utah
    • San Juan Co.
      • White Canyon District
        • Red Canyon
Plášil, J., Kampf, A.R., Kasatkin, A.V., Silva, S., Marty, J., Škoda R. and Čejka, J. (2013) Meisserite, IMA 2013-039. CNMNC Newsletter No. 17, October 2013, page 2999; Mineralogical Magazine, 77, 2997-3005 ; Plášil, j.,Kampf, A.R., Kasatkin, A.V., Marty, J., Škoda, R., Silva, S. & Čejka, J. (2013): Meisserite, Na5(UO2)(SO4)3(SO3OH)(H2O), a new uranyl sulfate mineral from the Blue Lizard mine, San Juan County, Utah, USA. Mineralogical Magazine. 77, 2975-2988.
Mineral and/or Locality  
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