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Oswaldpeetersite

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Formula:
(UO2)2(CO3)(OH)2 · 4H2O
Colour:
Canary yellow
Lustre:
Vitreous
Hardness:
2 - 3
Specific Gravity:
4.1 - 4.55
Crystal System:
Monoclinic
Name:
After Maurice Oswald Peeters, born Leuven, Belgium March 2nd 1945, University of Leuven, Belgium.
This page provides mineralogical data about Oswaldpeetersite.


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Classification of OswaldpeetersiteHide

Approved
Approval Year:
2000
5.EA.20

5 : CARBONATES (NITRATES)
E : Uranyl Carbonates
A : UO2:CO3 > 1:1

Physical Properties of OswaldpeetersiteHide

Vitreous
Transparency:
Transparent
Colour:
Canary yellow
Streak:
Pale yellow
Hardness:
2 - 3 on Mohs scale
Hardness Data:
Estimated
Fracture:
Irregular/Uneven
Density:
4.1 - 4.55 g/cm3 (Measured)    4.55 g/cm3 (Calculated)

Optical Data of OswaldpeetersiteHide

Type:
Biaxial (-)
RI values:
nα = 1.583 nβ = 1.669 nγ = 1.712
Max Birefringence:
δ = 0.129
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of OswaldpeetersiteHide

Formula:
(UO2)2(CO3)(OH)2 · 4H2O
IMA Formula:
(UO2)2CO3(OH)2 · 4H2O

Crystallography of OswaldpeetersiteHide

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

Type Occurrence of OswaldpeetersiteHide

Place of Conservation of Type Material:
Royal Belgian Institute of Natural Sciences, Brussel

Synonyms of OswaldpeetersiteHide

Other Language Names for OswaldpeetersiteHide

Related Minerals - Nickel-Strunz GroupingHide

5.EA.05UM1997-24-CO:CaCuHUCa2Cu(UO2)2(CO3)2O3 · 3H2O
5.EA.10UrancalcariteCa(UO2)3(CO3)(OH)6 · 3H2OOrth.
5.EA.15WyartiteCaU5+(UO2)2(CO3)O4(OH) · 7H2OOrth.
5.EA.25RoubaultiteCu2(UO2)3(CO3)2O2(OH)2•4H2OTric. 1 : P1
5.EA.30Kamotoite-(Y)Y2(UO2)4(CO3)3O4 · 14H2OMon. 2/m
5.EA.35SharpiteCa(UO2)6(CO3)5(OH)4 · 6H2OOrth.

Other InformationHide

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 OswaldpeetersiteHide

Reference List:
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Internet Links for OswaldpeetersiteHide

Localities for OswaldpeetersiteHide

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
        • White Canyon
Can Min (2001) 39, 6, 1685-1689
Mineral and/or Locality  
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