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Spriggite

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.

Articles/Blogs about Spriggite

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    Localities for Spriggite

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    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.
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    (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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