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Oswaldpeetersite

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Jomac Mine, White Canyon, White Canyon District, San Juan Co., Utah, USA
© Brent Thorne

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Formula:
(UO
 
2
)
 
2
(CO
 
3
)(OH)
 
2
 · 4H
 
2
O
System:MonoclinicColour:Canary yellow
Lustre:VitreousHardness:2 - 3
Name:After Maurice Oswald Peeters, University of Leuven, Belgium
This page provides mineralogical data about Oswaldpeetersite.

Classification of Oswaldpeetersite

IMA status:Approved 2000
Nickel-Strunz 10th (pending) edition ID:5.EA.20

5 : CARBONATES (NITRATES)
E : Uranyl Carbonates
A : UO2:CO3 > 1:1
mindat.org URL:http://www.mindat.org/min-10997.html
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Type Occurrence of Oswaldpeetersite

Type Locality:Jomac Mine, White Canyon, White Canyon District, San Juan Co., Utah, USA

Physical Properties of Oswaldpeetersite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Canary yellow
Streak:Pale yellow
Hardness (Mohs):2 - 3
Hardness Data:Estimated
Fracture:Irregular/Uneven
Density (measured):4.1 - 4.55 g/cm3
Density (calculated):4.55 g/cm3

Crystallography of Oswaldpeetersite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P21/b {P1 1 21/b} {P21/c} {P1 21/c 1} {P21/a}
Cell Parameters:a = 4.1425Å, b = 14.098Å, c = 18.374Å
β = 103.62°
Ratio:a:b:c = 0.294 : 1 : 1.303
Unit Cell Volume:V 1042.8 ų
Z:4
Morphology:{100}, {010}, {001}, acicular and heavily striated parallel to the length.
Twinning:None mentioned

Optical Data of Oswaldpeetersite

Type:Biaxial (-)
RI values: nα = 1.583 nβ = 1.669 nγ = 1.712
Maximum Birefringence:δ = 0.129

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate

Chemical Properties of Oswaldpeetersite

Formula:
(UO
 
2
)
 
2
(CO
 
3
)(OH)
 
2
 · 4H
 
2
O
Essential elements:C, H, O, U
All elements listed in formula:C, H, O, U

Relationship of Oswaldpeetersite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
5.EA.05UM1997-24-CO:CaCuHU
Ca
 
2
Cu(UO
 
2
)
 
2
(CO
 
3
)
 
2
O
 
3
 · 3H
 
2
O
5.EA.10Urancalcarite
Ca(UO
 
2
)
 
3
(CO
 
3
)(OH)
 
6
 · 3H
 
2
O
5.EA.15Wyartite
CaU
5+
 
(UO
 
2
)
 
2
(CO
 
3
)O
 
4
(OH) · 7H
 
2
O
5.EA.25Roubaultite
Cu
 
2
(UO
 
2
)
 
3
(OH)
 
10
 · 5H
 
2
O
5.EA.30Kamotoite-(Y)
Y
 
2
(UO
 
2
)
 
4
(CO
 
3
)
 
3
O
 
4
 · 14H
 
2
O
5.EA.35Sharpite
Ca(UO
 
2
)
 
6
(CO
 
3
)
 
5
(OH)
 
4
 · 6H
 
2
O

Other Names for Oswaldpeetersite

Synonyms:
IMA2000-034
Other Languages:
German:Oswaldpeetersit
Spanish:Oswaldpeetersita

Other Information

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 Oswaldpeetersite

Reference List:

- +
Canadian Mineralogist (2001): 39: 1685-1689.

Internet Links for Oswaldpeetersite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
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    • Localities for Oswaldpeetersite

    Hide Locality List
    (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.
    USA
     
    • Utah
      • San Juan Co.
        • White Canyon District
          • White Canyon
    		Can Min (2001) 39, 6, 1685-1689
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. 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. 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. Current server date and time: 18th Jun 2011 13:23:05
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