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Rabejacite

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Formula:
Ca(UO
 
2
)
 
4
(SO
 
4
)
 
2
(OH)
 
6
· 6H
 
2
O
System:OrthorhombicColour:Bright to amber yellow.
Hardness:3
Name:Named after its discovery locality.
This page provides mineralogical data about Rabejacite.

Classification of Rabejacite

IMA status:Approved
Strunz 8th edition ID:6/D.20-90
Nickel-Strunz 10th (pending) edition ID:7.EC.10

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
E : Uranyl sulfates
C : With medium-sized and large cations
Dana 8th edition ID:31.6.8.1

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
6 : (AB)5(XO4)2Zq·xH2O
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Type Occurrence of Rabejacite

Type Locality:Rabejac, Lodève, Hérault, Languedoc-Roussillon, France
Place of Conservation of Type Material:Royal Belgian Institute of Narural Sciences, Brussels RC4409, RC4410
Year of Discovery:1993

Occurrences of Rabejacite

Geological Setting:Oxidation zone of deposits containing uraninite.

Physical Properties of Rabejacite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent, Translucent
Colour:Bright to amber yellow.
Hardness (Mohs):3
Density (calculated):4.31 g/cm3
Comment:Measured > 4.1

Crystallography of Rabejacite

Crystal System:Orthorhombic
Cell Parameters:a = 8.73(1) Å, b = 17.09(2) Å, c = 15.72(2) Å
Ratio:a:b:c = 0.511 : 1 : 0.92
Unit Cell Volume:V 2,345.36 ų (Calculated from Unit Cell)
Z:4
Morphology:Flattened crysyals or acicular. Rosettes, rounded nodules, crusts.

Optical Data of Rabejacite

Type:Biaxial (-)
RI values: nα = 1.617 nβ = 1.710(2) nγ = 1.758(2)
2V:Measured: 68° , Calculated: 68°
Maximum Birefringence:δ = 0.141

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:r > v weak
Pleochroism:Strong
Comments:Y= very pale yellow
Z= sulfur yellow

Chemical Properties of Rabejacite

Formula:
Ca(UO
 
2
)
 
4
(SO
 
4
)
 
2
(OH)
 
6
· 6H
 
2
O
Simplified for copy/paste:Ca(UO2)4(SO4)2(OH)6·6H2O
Essential elements:Ca, H, O, S, U
All elements listed in formula:Ca, H, O, S, U

Relationship of Rabejacite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
7.EC.05Cobaltzippeite
Co(UO
 
2
)
 
2
(SO
 
4
)O
 
2
· 3.5H
 
2
O
7.EC.05Magnesiozippeite
Mg(UO
 
2
)
 
2
(SO
 
4
)O
 
2
· 3.5H
 
2
O
7.EC.05Nickelzippeite
Ni(UO
 
2
)
 
2
(SO
 
4
)O
 
2
· 3.5H
 
2
O (?)
7.EC.05Natrozippeite
Na
 
5
(UO
 
2
)
 
8
(SO
 
4
)
 
4
O
 
5
(OH)
 
3
· 12H
 
2
O
7.EC.05Zinczippeite
Zn(UO
 
2
)
 
2
(SO
 
4
)O
 
2
· 3.5H
 
2
O
7.EC.05Zippeite
K
 
3
(UO
 
2
)
 
4
(SO
 
4
)
 
2
O
 
3
(OH) · 3H
 
2
O
7.EC.15Marécottite
Mg
 
3
(UO
 
2
)
 
8
(SO
 
4
)
 
4
O
 
6
(OH)
 
2
· 28H
 
2
O
7.EC.15Sejkoraite-(Y)
Y
 
2
(UO
 
2
)
 
8
(SO
 
4
)
 
4
O
 
6
(OH)
 
2
· 26H
 
2
O
7.EC.20Pseudojohannite
Cu
 
6.5
(UO
 
2
)
 
8
(SO
 
4
)
 
4
O
 
8
(OH)
 
5
· 25H
 
2
O

Other Names for Rabejacite

Synonyms:
IMA1992-043
Other Languages:
German:Rabejacit
Spanish:Rabejacita

Other Information

Fluorescence in UV light:Pale yellow under SW and LW UV
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Rabejacite

Reference List:

- +
European Journal of Mineralogy (1993): 5: 873-877.

American Mineralogist (1994): 79: 572.

New Minerals (1997), New Minerals 1990-1994.

Sejkora, J., Čejka, J., Ondruš, P. (2000) New data of rabejacite (Jáchymov, the Krusné Hory Mts., Czech Republic). Neues Jahrbuch für Mineralogie Monatshefte: 7: 289-301.

Internet Links for Rabejacite

Search Engines:
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  • Look for Rabejacite on Webmineral
  • Look for Rabejacite on Athena Mineralogy
  • Look for Rabejacite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Rabejacite details from Handbook of Mineralogy (PDF)
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  • Localities for Rabejacite

    The 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.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Australia
     
    • Northern Territory
      • Alligator Rivers Region
    R.L. Frost, D.A. Henry, and K. Erickson, Raman spectroscopic detection of wyartite in the presence of rabejacite. Journal of Raman Spectroscopy, 2004. 35(4): p. 255- 260.
    R.L. Frost, D.A. Henry, and K. Erickson, Raman spectroscopic detection of wyartite in the presence of rabejacite. Journal of Raman Spectroscopy, 2004. 35(4): p. 255- 260.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
    Tschechien & Slowakei, Mineralien und Funstellen, Jaroslav Hyrsl, Petr Korbel. 2008. page 375
      • Karlovy Vary Region
        • Krušné Hory Mts (Erzgebirge)
          • Jáchymov District (St Joachimsthal)
    Sejkora, J., Čejka, J., Ondruš, P. (2000) New data of rabejacite (Jáchymov, the Krusné Hory Mts., Czech Republic). Neues Jahrbuch für Mineralogie Monatshefte: 7: 289-301; Lapis (2002): (7/8): 63-65.
    Tvrdý, J. & Plášil, J. (2010): Jáchymov - Reiche Erzlagerstätte und Radonbad im böhmischen Westerzgebirge. Aufschluss 61, 277-292.
    Plášil, J., Dušek, M., Novák, M., Čejka, J., Císařová, I., Škoda, R. (2011): Sejkoraite-(Y), a new member of the zippeite group containing trivalent cations from Jáchymov (St. Joachimsthal), Czech Republic: Description and crystal structure refinement. American Mineralogist, 96, 983-991. ; Jakub Plášil, Jiří Sejkora, Radek Škoda, Pavel Škácha (2014): The recent weathering of uraninite from the Červená vein, Jáchymov (Czech Republic): a fingerprint of the primary mineralization geochemistry onto the alteration association. Journal of Geosciences, 59, 223-253.
    • Moravia (Mähren; Maehren)
      • Vysočina Region
        • Rožná deposit
    Petr Pauliš, Stanislav Kopecký, Pavel Černý: Uranové minerály České republiky a jejich lokality. (2007)
    France
     
    • Languedoc-Roussillon
      • Hérault
        • Lodève
    Le Règne Minéral, Hors Série IV (1998)
    [Le Cahier des Micromonteurs, 1998, 2, p.13-26]
    [Eur.J.Mineral.(1993) 5, 873-877; Le Règne Minéral 1997, 13, p.5-18]
    Italy
     
    • Trentino-Alto Adige
      • Trento Province
        • Condino
    Campostrini, I., Demartin, F., & Gramaccioli, C. M. (2006). Rio Giulis. Minerali secondari del giacimento uranifero presso Condino, Trento. Rivista Mineralogica Italiana, 30(3), 152-165.
    Switzerland
     
    • Wallis (Valais)
      • Le Trient Valley
        • Les Marécottes
    Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 345; American Mineralogist 88(4), 676-685.; - Meisser, N. (2012): La minéralogie de l'uranium dans le massif des Aiguilles Rouges. Matér. Géol. Suisse, Sér. géotech. 96, 183 p.
    USA
     
    • New Mexico
      • McKinley Co.
        • Grants District
    Bridget E. McCollam (2002) ZIPPEITES: CHEMICAL CHARACTERIZATION AND POWDER X-RAY DIFFRACTION STUDIES OF SYNTHETIC AND NATURAL SAMPLES MS Thesis, Notre Dame University
    • Utah
      • San Juan Co.
        • White Canyon District
          • White Canyon
            • Copper Point
    Bridget E. McCollam (2002) ZIPPEITES: CHEMICAL CHARACTERIZATION AND POWDER X-RAY DIFFRACTION STUDIES OF SYNTHETIC AND NATURAL SAMPLES MS Thesis, Notre Dame University
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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