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Lepersonnite-(Gd)

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Big Photo

Shinkolobwe Mine (Kasolo Mine), Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre)
© Rob Lavinsky

Show Lepersonnite-(Gd) Photos (5)



Formula:
Ca(Gd,Dy)
 
2
(UO
 
2
)
 
24
(SiO
 
4
)
 
4
(CO
 
3
)
 
8
(OH)
 
24
 · 48H
 
2
O
Name:After Jacques Lepersonne (1909 - 1997)
This page provides mineralogical data about Lepersonnite-(Gd).

Classification of Lepersonnite-(Gd)

IMA status:Approved
Strunz 8th edition ID:8/B.38-10
Nickel-Strunz 10th (pending) edition ID:5.EG.10

5 : CARBONATES (NITRATES)
E : Uranyl Carbonates
G : With SO4 or SiO4
Dana 8th edition ID:17.1.12.1

17 : COMPOUND CARBONATES
1 : Miscellaneous
Hey's CIM Ref.:17.4.12

17 : Silicates Containing other Anions
4 : Silicates with carbonates
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Type Occurrence of Lepersonnite-(Gd)

Type Locality:Shinkolobwe Mine (Kasolo Mine), Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre)

Optical Data of Lepersonnite-(Gd)

Type:Biaxial (-)
RI values: nα = 1.638 nβ = 1.666 nγ = 1.682
2V:Measured: 73° , Calculated: 72°
Maximum Birefringence:δ = 0.044

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

Chemical Properties of Lepersonnite-(Gd)

Formula:
Ca(Gd,Dy)
 
2
(UO
 
2
)
 
24
(SiO
 
4
)
 
4
(CO
 
3
)
 
8
(OH)
 
24
 · 48H
 
2
O
Essential elements:C, Ca, Gd, H, O, Si, U
All elements listed in formula:C, Ca, Dy, Gd, H, O, Si, U

Relationship of Lepersonnite-(Gd) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
5.EG.05Schröckingerite
NaCa
 
3
(UO
 
2
)(CO
 
3
)
 
3
(SO
 
4
)F · 10H
 
2
O
5.EG.05UM1997-27-CO:CaHKSU
Ca, K, Mg, U, S(?)
Related Minerals - Hey's Index Grouping:

- +
17.4.1Tilleyite
Ca
 
5
(Si
 
2
O
 
7
)(CO
 
3
)
 
2
17.4.2Spurrite
Ca
 
5
(SiO
 
4
)
 
2
(CO
 
3
)
17.4.3Paraspurrite
17.4.4Scawtite
Ca
 
7
(Si
 
3
O
 
9
)
 
2
CO
 
3
 · 2H
 
2
O
17.4.5Fukalite
Ca
 
4
[Si
 
2
O
 
6
][CO
 
3
](OH)
 
2
17.4.6Meionite
Ca
 
4
Al
 
6
Si
 
6
O
 
24
CO
 
3
17.4.7Cancrinite
(Na,Ca,☐)
 
8
(Al
 
6
Si
 
6
O
 
24
)(CO
 
3
,SO
 
4
)
 
2
 · 2H
 
2
O
17.4.8Carletonite
KNa
 
4
Ca
 
4
Si
 
8
O
 
18
(CO
 
3
)
 
4
(OH,F) · H
 
2
O
17.4.9Iimoriite-(Y)
Y
 
2
[SiO
 
4
][CO
 
3
]
17.4.10Kainosite-(Y)
Ca
 
2
(Y,Ce)
 
2
(Si
 
4
O
 
12
)(CO
 
3
) · H
 
2
O
17.4.11Caysichite-(Y)
Ca
 
2
Y
 
2
Si
 
4
O
 
10
(CO
 
3
)
 
3
 · 4H
 
2
O
17.4.13Ashburtonite
Pb
 
4
Cu
 
4
(Si
 
4
O
 
12
)(HCO
 
3
)
 
4
(OH)
 
3
Cl · H
 
2
O
17.4.14Surite
(Pb,Ca)
 
3
(Al,Fe
2+
 
,Mg)
 
2
((Si,Al)
 
4
O
 
10
)(CO
 
3
)
 
2
(OH)
 
2
17.4.15Tundrite-(Ce)
Na
 
2
Ce
 
2
Ti(SiO
 
4
)(CO
 
3
)
 
2
O
 
2
17.4.16Tundrite-(Nd)
Na
 
3
(Nd,La)
 
4
(Ti,Nb)
 
2
(SiO
 
4
)
 
2
(CO
 
3
)
 
3
O
 
4
(OH) · 2H
 
2
O

Other Names for Lepersonnite-(Gd)

Synonyms:
IMA1981-036
Other Languages:

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 Lepersonnite-(Gd)

Reference List:

- +
American Mineralogist (1983): 68: 1248

Internet Links for Lepersonnite-(Gd)

Search Engines:
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Lepersonnite-(Gd) details from Handbook of Mineralogy (PDF)
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    • Localities for Lepersonnite-(Gd)

    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.
    Democratic Republic of Congo (Zaïre)
     
    • Katanga (Shaba)
      • Katanga Copper Crescent
        • Shinkolobwe
    		Can.Min.(1982) 20, 231-238
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