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Gysinite-(Nd)

Big Photo

Sa Duchessa Mine, Oridda, Domusnovas, Carbonia-Iglesias Province, Sardinia, Italy
© Elmar Lackner 2009

Show Gysinite-(Nd) Photos (9)
Formula:
Pb(Nd,La)[OH|(CO
 
3
)
 
2
] · H
 
2
O
System:OrthorhombicHardness:4 - 4½


The lead analogue of ancylite.

Classification of Gysinite-(Nd)

IMA status:Approved 1981
Strunz 8th edition ID:5/E.08-40
Nickel-Strunz 10th (pending) edition ID:5.DC.05

5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
C : With large cations
Dana 8th edition ID:16b.1.1.4

16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
1 : AmBn(XO3)pZqxH2O & with (m+n):p = 1:1
Hey's CIM Ref.:11.9.4

11 : Carbonates
9 : Carbonates of Pb, Zr and Th
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Type Occurrence of Gysinite-(Nd)

Type Locality:Kasompi Mine (Menda Mine; Kasompi Hill), Swambo, Central area, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre)

Physical Properties of Gysinite-(Nd)

Hardness (Mohs):4 - 4½

Crystallography of Gysinite-(Nd)

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:a = 5.0028(8) Å, b = 8.555(1) Å, c = 7.2392(8) Å
Ratio:a:b:c = 0.585 : 1 : 0.846
Unit Cell Volume:V 309.83 ų (Calculated from Unit Cell)
Z:2
Comment:Space group Pmcn.
X-Ray Powder Diffraction:
d-spacingIntensity
5.54 (50)
4.326 (100)
3.676 (100)
2.950 (50)
2.336 (50)
2.074 (60)

Optical Data of Gysinite-(Nd)

Type:Biaxial (-)
RI values: nα = 1.745 nβ = 1.805 nγ = 1.840
2V:Measured: 70° , Calculated: 72°
Maximum Birefringence:δ = 0.095

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:r > v moderate

Chemical Properties of Gysinite-(Nd)

Formula:
Pb(Nd,La)[OH|(CO
 
3
)
 
2
] · H
 
2
O
Essential elements:C, H, Nd, O, Pb
All elements listed in formula:C, H, La, Nd, O, Pb

Relationship of Gysinite-(Nd) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
5.DC.05Ancylite-(Ce)
SrCe[OH|(CO
 
3
)
 
2
] · H
 
2
O
5.DC.05Calcioancylite-(Ce)
(Ca,Sr)Ce(CO
 
3
)
 
2
OH·H
 
2
O
5.DC.05Calcioancylite-(Nd)
(Nd,Ce)
 
3
Ca(CO
 
3
)
 
4
(OH)
 
3
·H
 
2
O
5.DC.05Ancylite-(La)
Sr(La,Ce)[OH|(CO
 
3
)
 
2
] · H
 
2
O
5.DC.05Kozoite-(Nd)
(Nd,La,Sm,Pr)[OH|CO
 
3
]
5.DC.05Kozoite-(La)
(La,Nd)(CO
 
3
)(OH)
5.DC.10Kamphaugite-(Y)
Ca(Y,REE)[OH|(CO
 
3
)
 
2
] · H
 
2
O
5.DC.15Sheldrickite
NaCa
 
3
(CO
 
3
)
 
2
F
 
3
·H
 
2
O
5.DC.20Thomasclarkite-(Y)
(Na,Ce)(Y,REE)[(OH)
 
3
|HCO
 
3
] · 4H
 
2
O
5.DC.25Peterbaylissite
(Hg-Hg)
 
1.5
[OH|CO
 
3
] · 2H
 
2
O
5.DC.30Clearcreekite
(Hg-Hg)
 
1.5
[OH|CO
 
3
] · 2H
 
2
O
5.DC.35Niveolanite
NaBe(CO
 
3
)(OH)·2H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
11.9.1Cerussite
PbCO
 
3
11.9.2Hydrocerussite
Pb
 
3
(CO
 
3
)
 
2
(OH)
 
2
11.9.3Dundasite
PbAl
 
2
[(OH)
 
2
|CO
 
3
]
 
2
 · H
 
2
O
11.9.5Schuilingite-(Nd)
PbCu(Nd,Gd,Sm,Y)(CO
 
3
)
 
3
(OH)·1.5H
 
2
O
11.9.6Tuliokite
Na
 
6
BaTh(CO
 
3
)
 
6
·6H
 
2
O
11.9.7Weloganite
Sr
 
3
Na
 
2
Zr(CO
 
3
)
 
6
·3H
 
2
O
11.9.8Sabinaite
Na
 
4
Zr
 
2
TiO
 
4
(CO
 
3
)
 
4

Other Names for Gysinite-(Nd)

Synonyms:
IMA1981-046
Other Languages:
Russian:Гисинит-(Nd)

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 Gysinite-(Nd)

Reference List:American Mineralogist: 70: 1314-1317.

Zeitschrift für Kristallographie: 171: 155-158.

Internet Links for Gysinite-(Nd)

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    Localities for Gysinite-(Nd)

    Hide Locality List
    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.
    (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
        • Central area
          • Shinkolobwe
    		Jason B Smith collection
          • Swambo
    		Amer.Min.(1985) 70, 1314-1317; Lapis 17(3), 13-40 (1992)
    Germany
     
    • Lower Saxony
      • Harz Mts
        • Clausthal-Zellerfeld
          • Oberschulenberg
    		No reference listed
    Italy
     
    • Sardinia
      • Carbonia-Iglesias Province
        • Domusnovas
          • Oridda
    		Lapis 17(3), 35 (1992)
    Mineral and/or Locality
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