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Shabaite-(Nd)

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Formula:
Ca(Nd,Sm,Y)2(UO2)(CO3)4(OH)2 · 6H2O
Colour:
Pale yellow-green
Hardness:
Name:
Named after the Shaba Province (Katanga) where it was first found.
This page provides mineralogical data about Shabaite-(Nd).

Classification of Shabaite-(Nd)

Approved 1988
5.EE.10

5 : CARBONATES (NITRATES)
E : Uranyl Carbonates
E : UO2:CO3= 1:4
16b.1.5.1

16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
1 : AmBn(XO3)pZqxH2O & with (m+n):p = 1:1
11.11.16

11 : Carbonates
11 : Carbonates of Cr and U
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First Recorded Occurrence of Shabaite-(Nd)

Physical Properties of Shabaite-(Nd)

Pearly
Diaphaneity (Transparency):
Translucent
Colour:
Pale yellow-green
Hardness (Mohs):

Optical Data of Shabaite-(Nd)

Type:
Biaxial (-)
RI values:
nα = 1.534 nβ = 1.590 nγ = 1.600
2V:
Measured: 44° , Calculated: 44°
Max Birefringence:
δ = 0.066
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v weak

Chemical Properties of Shabaite-(Nd)

Formula:
Ca(Nd,Sm,Y)2(UO2)(CO3)4(OH)2 · 6H2O
Essential elements:
All elements listed in formula:

Relationship of Shabaite-(Nd) to other Species

11.11.1StichtiteMg6Cr2(OH)16[CO3] · 4H2O
11.11.2Rutherfordine(UO2)CO3
11.11.3Joliotite(UO2)CO3 · nH2O
11.11.4GrimseliteK3Na(UO2)(CO3)3 · H2O
11.11.5BayleyiteMg2(UO2)(CO3)3 · 18H2O
11.11.6MetazelleriteCa(UO2)(CO3)2 · 3H2O
11.11.7ZelleriteCa(UO2)(CO3)2 · 5H2O
11.11.8WyartiteCaU5+(UO2)2(CO3)O4(OH) · 7H2O
11.11.9UrancalcariteCa(UO2)3(CO3)(OH)6 · 3H2O
11.11.10SharpiteCa(UO2)6(CO3)5(OH)4 · 6H2O
11.11.11VogliteCa2Cu(UO2)(CO3)4 · 6H2O
11.11.12AndersoniteNa2Ca(UO2)(CO3)3 · 6H2O
11.11.13SwartziteMgCa(UO2)(CO3)3 · 12H2O
11.11.14RabbittiteCa3Mg3(UO2)2(CO3)6(OH)4 · 18H2O
11.11.15Kamotoite-(Y)Y2(UO2)4(CO3)3O4 · 14H2O
11.11.17Astrocyanite-(Ce)Cu2(Ce,Nd,La)2(UO2)(CO3)5(OH)2 · 1.5H2O
11.11.18Bijvoetite-(Y)(Y,Dy)2(UO2)4(CO3)4(OH)6 · 11H2O
11.11.19WidenmannitePb2(OH)2[(UO2)(CO3)2]
11.11.20ZnucaliteZn12Ca(UO2)(CO3)3(OH)22 · 4H2O

Other Names for Shabaite-(Nd)

Name in Other Languages:

Other Information

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 Shabaite-(Nd)

Reference List:
European Journal of Mineralogy (1989): 1: 85-88.

American Mineralogist (1990): 75: 433-434.

Internet Links for Shabaite-(Nd)

Localities for Shabaite-(Nd)

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Democratic Republic of Congo (Zaïre)
 
  • Katanga (Shaba)
    • Katanga Copper Crescent
      • Kolwezi District
        • Kamoto
[Mandarino, 1997]; Eur. J. Mineral., 1990, 2; Lapis 17(3), 13-40 (1992)
Mineral and/or Locality  
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