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Spriggite

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Mount Painter No. 2 workings, Radium Ridge, Mt Painter area, North Flinders Ranges, Flinders Ranges, South Australia, Australia
© AVK

Formula:
Pb
 
3
[(UO
 
2
)
 
6
|O
 
8
|(OH)
 
2
]·3H
 
2
O
System:MonoclinicColour:Bright orange
Hardness:4
Name:For the geologist Reginald Claude Sprigg (1919-1994), formerly government geologist in South Australia, co-author of "Uranium deposits of South Australia (1954)", and founder of the popular Arkaroola Resort.
This page provides mineralogical data about Spriggite.

Classification of Spriggite

IMA status:Approved 2002
Strunz 8th edition ID:4/H.07-45
Nickel-Strunz 10th (pending) edition ID:4.GC.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
G : Uranyl Hydroxides
C : With additional cations; with mainly UO2(O,OH)6 hexagonal polyhedra
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Type Occurrence of Spriggite

Type Locality:Mount Painter No. 2 workings, Radium Ridge, Mt Painter area, North Flinders Ranges, Flinders Ranges, South Australia, Australia
General Appearance of Type Material:prismatic crystals to 0.15 mm, forming aggregates to 1 cm across
Place of Conservation of Type Material:Musée géologique cantonal, Lausanne, Switzerland
Geological Setting of type material:strongly oxidized samples of a quartz-hematite breccia enriched in uranium, niobium and rare earth element minerals
Associated Minerals at type locality:
β-UranophaneSoddyiteSmoky QuartzSchoepiteRutherfordine
MetaschoepiteHematiteBillietite

Physical Properties of Spriggite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Bright orange
Streak:pale orange
Hardness (Mohs):4
Tenacity:Brittle
Cleavage:Distinct/Good
on (100)
Fracture:Irregular/Uneven
Density (measured):7.64 g/cm3

Crystallography of Spriggite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Cell Parameters:a = 28.35Å, b = 11.99Å, c = 14Å
β = 104.25°
Ratio:a:b:c = 2.364 : 1 : 1.168
Unit Cell Volume:V 4,612.41 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
6.92 (60)
3.46 (80)

Chemical Properties of Spriggite

Formula:
Pb
 
3
[(UO
 
2
)
 
6
|O
 
8
|(OH)
 
2
]·3H
 
2
O
All elements listed in formula:H, O, Pb, U

Relationship of Spriggite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.GC.05Clarkeite
(Na,Ca,Pb)
 
2
U
 
2
(O,OH)
 
7
4.GC.10Umohoite
(UO
 
2
)MoO
 
4
·4H
 
2
O

Other Names for Spriggite

Synonyms:
IMA2002-014
Other Languages:
German:Spriggit
Russian:Сприггит

Other Information

Fluorescence in UV light:none
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 Spriggite

Reference List:Brugger J. et al. (2003), Australian Journal of Mineralogy: 9(1): 15-31.

Brugger J., Krivovichev, S.V., Berlepsch, P., Meisser, N., Ansermet, S., and Armbruster, T. (2004) Spriggite, Pb3[(UO2)6O8(OH)2](H2O)3, a new mineral with β-U3O8-type sheets: description and crystal structure. American Mineralogist 89: 339-347.

Lapis (2004): 29(3): 41.

Burns, P.C. (2005) U 6+ minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. Canadian Mineralogist: 43: 1839-1894.

Internet Links for Spriggite

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    Localities for Spriggite

    Hide Locality List
    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
     
    • South Australia
      • Flinders Ranges
        • North Flinders Ranges
          • Mt Painter area
            • Radium Ridge
    		J. Brugger at al.: Austral. J. Mineral. 9(1):15-31 (2003); J. Brugger et al.: Amer. Min. 89:339-347 (2004); Lapis 29(3):41 (2004)
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the 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 hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 21st Nov 2009 05:57:28