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About Gysinite-(Nd)Hide

PbNd(CO3)2(OH) · H2O
light pink to reddish pink
Vitreous, Greasy
4 - 4½
Specific Gravity:
4.82 (Calculated)
Crystal System:
Member of:
Named in honor of Marcel Gysin (1891–1974), Professor of Mineralogy, University of Geneva, who worked for several years in the Shaba Province of Zaire, where this mineral originated.
The lead analogue of ancylite.

Classification of Gysinite-(Nd)Hide

Approval year:
First published:

D : Carbonates with additional anions, with H2O
C : With large cations

1 : AmBn(XO3)pZqxH2O & with (m+n):p = 1:1

11 : Carbonates
9 : Carbonates of Pb, Zr and Th

Physical Properties of Gysinite-(Nd)Hide

Vitreous, Greasy
light pink to reddish pink
white to light pink
4 - 4½ on Mohs scale
None Observed
4.82 g/cm3 (Calculated)
Sinks in Clerici's solution

Optical Data of Gysinite-(Nd)Hide

Biaxial (-)
RI values:
nα = 1.745 nβ = 1.805 nγ = 1.840
Measured: 70° , Calculated: 72°
Max Birefringence:
δ = 0.095
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
r > v moderate

Chemical Properties of Gysinite-(Nd)Hide

PbNd(CO3)2(OH) · H2O

Crystallography of Gysinite-(Nd)Hide

Crystal System:
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
a:b:c = 0.585 : 1 : 0.846
Unit Cell V:
309.83 ų (Calculated from Unit Cell)
pseudo-octahedral, {lll} and {110}
Twin plane (100), axis unknown
Space group Pmcn.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0010477Gysinite-(Nd)Feng W J, Zhou G P, Liu Z B, Xu Y (2007) Nd(CO3)(OH) from single-crystal data Acta Crystallographica E63 i174-i1742007synthetic0293
0010922Gysinite-(Nd)Chabot B, Sarp H (1985) Structure refinement of gysinite La.16Nd1.18Pb0.66(CO3)2(OH)1.34(H2O).66 Zeitschrift fur Kristallographie 171 155-1581985Shinkolobwe, Shaba - Zaire0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
5.54 Å(50)
4.326 Å(100)
3.676 Å(100)
2.950 Å(50)
2.336 Å(50)
2.074 Å(60)
2.021 Å(50)

Type Occurrence of Gysinite-(Nd)Hide

General Appearance of Type Material:
euhedral crystals
Place of Conservation of Type Material:
Department of Mineralogy, Geneva Natural History Museum

Synonyms of Gysinite-(Nd)Hide

Other Language Names for Gysinite-(Nd)Hide

Relationship of Gysinite-(Nd) to other SpeciesHide

Member of:
Other Members of this group:
Ancylite-(Ce)CeSr(CO3)2(OH) · H2OOrth. mmm (2/m 2/m 2/m)
Ancylite-(La)LaSr(CO3)2(OH) · H2OOrth. mmm (2/m 2/m 2/m)
Calcioancylite-(Ce)(Ce,Ca,Sr)CO3(OH,H2O)Orth. mmm (2/m 2/m 2/m)
Calcioancylite-(Nd)Ca(Nd,La,Ce)(CO3)2(OH).H2OMon. m : Pm
Kozoite-(Nd)(Nd,La,Sm,Pr)(CO3)(OH)Orth. mmm (2/m 2/m 2/m)
Unnamed (Ce-analogue of Kozoite-(La) and -(Nd))(Ce,La)(CO3)(OH)Orth.
Unnamed (La-analogue of Calcioancylite-(Ce))(La,Ce,Nd,Ca,Sr)CO3(OH,H2O)Orth.

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Gysinite-(Nd) associated with CerussitePbCO3
1 photo of Gysinite-(Nd) associated with Schuilingite-(Nd)PbCu(Nd,Gd,Sm,Y)(CO3)3(OH) · 1.5H2O

Related Minerals - Nickel-Strunz GroupingHide

5.DC.05Ancylite-(Ce)CeSr(CO3)2(OH) · H2OOrth. mmm (2/m 2/m 2/m)
5.DC.05Calcioancylite-(Ce)(Ce,Ca,Sr)CO3(OH,H2O)Orth. mmm (2/m 2/m 2/m)
5.DC.05Calcioancylite-(Nd)Ca(Nd,La,Ce)(CO3)2(OH).H2OMon. m : Pm
5.DC.05Ancylite-(La)LaSr(CO3)2(OH) · H2OOrth. mmm (2/m 2/m 2/m)
5.DC.05Kozoite-(Nd)(Nd,La,Sm,Pr)(CO3)(OH)Orth. mmm (2/m 2/m 2/m)
5.DC.10Kamphaugite-(Y)Ca(Y,REE)(CO3)2(OH) · H2OTet. 4 2 2 : P41 21 2
5.DC.15SheldrickiteNaCa3(CO3)2F3 · H2OTrig. 3 : P32
5.DC.20Thomasclarkite-(Y)(Na,Ce)(Y,REE)(HCO3)(OH)3 · 4H2OMon. 2 : P2
5.DC.25Peterbaylissite[Hg2]2+3[CO3]2(OH)2 · 4H2OOrth.
5.DC.30Clearcreekite[Hg2]2+3[CO3]2(OH)2 · 4H2OMon.
5.DC.35NiveolaniteNaBe(CO3)(OH) · 2H2OTet. 4/mmm (4/m 2/m 2/m) : P4/mcc

Related Minerals - Dana Grouping (8th Ed.)Hide

16b.1.1.1Ancylite-(Ce)CeSr(CO3)2(OH) · H2OOrth. mmm (2/m 2/m 2/m)
16b.1.1.2Calcioancylite-(Ce)(Ce,Ca,Sr)CO3(OH,H2O)Orth. mmm (2/m 2/m 2/m)
16b.1.1.3Calcioancylite-(Nd)Ca(Nd,La,Ce)(CO3)2(OH).H2OMon. m : Pm

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

11.9.1CerussitePbCO3Orth. mmm (2/m 2/m 2/m)
11.9.2HydrocerussitePb3(CO3)2(OH)2Trig. 3m (3 2/m) : R3m
11.9.3DundasitePbAl2(CO3)2(OH)4 · H2OOrth. mmm (2/m 2/m 2/m)
11.9.5Schuilingite-(Nd)PbCu(Nd,Gd,Sm,Y)(CO3)3(OH) · 1.5H2OOrth. mm2
11.9.6TuliokiteNa6BaTh(CO3)6 · 6H2OTrig.
11.9.7WeloganiteNa2Sr3Zr(CO3)6 · 3H2OTric. 1 : P1
11.9.8SabinaiteNa4Zr2TiO4(CO3)4Mon. 2/m : B2/b

Fluorescence of Gysinite-(Nd)Hide

None observed (SW or LW)

Other InformationHide

Soluble with effervescence in cold dilute hydrochloric acid.
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 Gysinite-(Nd)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Sarp, H., Bertrand, J. (1985) Gysinite, Pb(Nd,La)(CO3)2(OH)·H2O, a new lead, rare-earth carbonate from Shinkolobwe, Shaba, Zaïre and its relationship to ancylite. American Mineralogist: 70: 1314-1317.
Chabot, B., Sarp, H. (1985) Structure refinement of gysinite La0.16Nd1.18Pb0.66(CO3)2(OH)1.34·0.66H2O. Zeitschrift für Kristallographie: 171: 155-158.
Nickel, E.H., Mandarino, J.A. (1987) Procedures involving the IMA Commission on New Minerals and Mineral Names and guidelines on mineral nomenclature. American Mineralogist: 72: 1031-1042.
Olmi, F., Sabelli, C., Brizzi, G. (1988) Agardite-(Y), Gysinite-(Nd) and other rare minerals from Sardinia. The Mineralogical Record: 19: 305-310.
Olmi, F., Sabelli, C. (1991) Gysinite-(Nd), a mineral new to Italy, from Sa Duchessa, Sardinia. Neues Jahrbuch für Mineralogie, Monatshefte: 4: 185-191.
Feng, W.J., Zhou, G.P., Liu, Z.B., Xu, Y. (2007) Nd(CO3)(OH) from single-crystal data. Acta Crystallographica: E63: i174-i174.
Roth, P. (2007) Gysinite-(Nd). in Minerals first discovered in Switzerland and minerals named after Swiss individuals, Kristallografik Verlag (Achberg Germany): 184-185.
Tahara, T., Nakai, I., Miyawaki, R., Matsubara, S. (2007) Crystal chemistry of RE(CO3)OH. Zeitschrift für Kristallographie: 222: 326-334.
Sheu, H.S., Shih, W.J., Chuang, W.T., Li, I.F., Yeh, C.S. (2010) Crystal structure and phase transitions of Gd(CO3)OH studied by synchrotron powder diffraction. Journal of the Chinese Chemical Society: 57: 938-945.

Internet Links for Gysinite-(Nd)Hide

Localities for Gysinite-(Nd)Hide

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.
DR Congo
  • Haut-Katanga
    • Kambove District
      • Shinkolobwe
Jason B Smith collection
  • Lualaba
    • Kolwezi mining district
Sarp, H., Bertrand, J. (1985) Gysinite, Pb(Nd,La)(CO3)2(OH)·H2O, a new lead, rare-earth carbonate from Shinkolobwe, Shaba, Zaire and its relationship to ancylite. American Mineralogist, 70(11-12), 1314-1317.; Lapis (1992) 17(3), 13-40.; Deliens, M. (1996) Overzicht van de mineralogie van de koper-, kobalt- en uraniumvoorkomens in Zuid-Shaba (Zaïre). Pages 35-49 in: Schatten der Aarde. Van mineraal tot juweel. Tentoonstelling in de abdij Saint-Gérard de Brogne van 27 april tot 27 oktober 1996. Catalogus opgemaakt onder de leiding van R. Warin, AGAB en P. Van hee, MKA (in Dutch).
  • Lower Saxony
    • Goslar District
      • Clausthal-Zellerfeld
        • Oberschulenberg
No reference listed
  • Sardinia
    • South Sardinia Province
      • Domusnovas
        • Oridda Valley
Lapis 17(3), 35 (1992)
Mineral and/or Locality  
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