Gysinite-(Nd)
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About Gysinite-(Nd)
Formula:
PbNd(CO3)2(OH) · H2O
Colour:
light pink to reddish pink
Lustre:
Vitreous, Greasy
Hardness:
4 - 4½
Specific Gravity:
4.82 (Calculated)
Crystal System:
Orthorhombic
Member of:
Name:
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.
Classification of Gysinite-(Nd)
Approved
Approval year:
1981
First published:
1985
5/E.08-40
5.DC.05
5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
C : With large cations
5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
C : With large cations
16b.1.1.4
16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
1 : AmBn(XO3)pZqxH2O & with (m+n):p = 1:1
16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
1 : AmBn(XO3)pZq
11.9.4
11 : Carbonates
9 : Carbonates of Pb, Zr and Th
11 : Carbonates
9 : Carbonates of Pb, Zr and Th
Physical Properties of Gysinite-(Nd)
Vitreous, Greasy
Transparency:
Translucent
Colour:
light pink to reddish pink
Streak:
white to light pink
Hardness:
4 - 4½ on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Density:
4.82 g/cm3 (Calculated)
Comment:
Sinks in Clerici's solution
Optical Data of Gysinite-(Nd)
Type:
Biaxial (-)
RI values:
nα = 1.745 nβ = 1.805 nγ = 1.840
2V:
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.
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r > v moderate
Chemical Properties of Gysinite-(Nd)
Formula:
PbNd(CO3)2(OH) · H2O
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 V:
309.83 ų (Calculated from Unit Cell)
Z:
2
Morphology:
pseudo-octahedral, {lll} and {110}
Twinning:
Twin plane (100), axis unknown
Comment:
Space group Pmcn.
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0010477 | Gysinite-(Nd) | Feng W J, Zhou G P, Liu Z B, Xu Y (2007) Nd(CO3)(OH) from single-crystal data Acta Crystallographica E63 i174-i174 | ![]() | 2007 | synthetic | 0 | 293 |
0010922 | Gysinite-(Nd) | Chabot B, Sarp H (1985) Structure refinement of gysinite La.16Nd1.18Pb0.66(CO3)2(OH)1.34(H2O).66 Zeitschrift fur Kristallographie 171 155-158 | ![]() | 1985 | Shinkolobwe, Shaba - Zaire | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
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)
General Appearance of Type Material:
euhedral crystals
Place of Conservation of Type Material:
Department of Mineralogy, Geneva Natural History Museum
Synonyms of Gysinite-(Nd)
Other Language Names for Gysinite-(Nd)
German:Gysinit-(Nd)
Russian:Гисинит-(Nd)
Relationship of Gysinite-(Nd) to other Species
Member of:
Other Members of this group:
Ancylite-(Ce) | CeSr(CO3)2(OH) · H2O | Orth. mmm (2/m 2/m 2/m) |
Ancylite-(La) | LaSr(CO3)2(OH) · H2O | Orth. 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).H2O | Mon. m : Pm |
Kozoite-(La) | (La,Nd)(CO3)(OH) | Orth. |
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 Associates
Associated Minerals Based on Photo Data:
2 photos of Gysinite-(Nd) associated with Cerussite | PbCO3 |
1 photo of Gysinite-(Nd) associated with Schuilingite-(Nd) | PbCu(Nd,Gd,Sm,Y)(CO3)3(OH) · 1.5H2O |
Related Minerals - Nickel-Strunz Grouping
5.DC.05 | Ancylite-(Ce) | CeSr(CO3)2(OH) · H2O | Orth. mmm (2/m 2/m 2/m) |
5.DC.05 | Calcioancylite-(Ce) | (Ce,Ca,Sr)CO3(OH,H2O) | Orth. mmm (2/m 2/m 2/m) |
5.DC.05 | Calcioancylite-(Nd) | Ca(Nd,La,Ce)(CO3)2(OH).H2O | Mon. m : Pm |
5.DC.05 | Ancylite-(La) | LaSr(CO3)2(OH) · H2O | Orth. mmm (2/m 2/m 2/m) |
5.DC.05 | Kozoite-(Nd) | (Nd,La,Sm,Pr)(CO3)(OH) | Orth. mmm (2/m 2/m 2/m) |
5.DC.05 | Kozoite-(La) | (La,Nd)(CO3)(OH) | Orth. |
5.DC.10 | Kamphaugite-(Y) | Ca(Y,REE)(CO3)2(OH) · H2O | Tet. 4 2 2 : P41 21 2 |
5.DC.15 | Sheldrickite | NaCa3(CO3)2F3 · H2O | Trig. 3 : P32 |
5.DC.20 | Thomasclarkite-(Y) | (Na,Ce)(Y,REE)(HCO3)(OH)3 · 4H2O | Mon. 2 : P2 |
5.DC.25 | Peterbaylissite | [Hg2]2+3[CO3]2(OH)2 · 4H2O | Orth. |
5.DC.30 | Clearcreekite | [Hg2]2+3[CO3]2(OH)2 · 4H2O | Mon. |
5.DC.35 | Niveolanite | NaBe(CO3)(OH) · 2H2O | Tet. 4/mmm (4/m 2/m 2/m) : P4/mcc |
Related Minerals - Dana Grouping (8th Ed.)
16b.1.1.1 | Ancylite-(Ce) | CeSr(CO3)2(OH) · H2O | Orth. mmm (2/m 2/m 2/m) |
16b.1.1.2 | Calcioancylite-(Ce) | (Ce,Ca,Sr)CO3(OH,H2O) | Orth. mmm (2/m 2/m 2/m) |
16b.1.1.3 | Calcioancylite-(Nd) | Ca(Nd,La,Ce)(CO3)2(OH).H2O | Mon. m : Pm |
Related Minerals - Hey's Chemical Index of Minerals Grouping
11.9.1 | Cerussite | PbCO3 | Orth. mmm (2/m 2/m 2/m) |
11.9.2 | Hydrocerussite | Pb3(CO3)2(OH)2 | Trig. 3m (3 2/m) : R3m |
11.9.3 | Dundasite | PbAl2(CO3)2(OH)4 · H2O | Orth. mmm (2/m 2/m 2/m) |
11.9.5 | Schuilingite-(Nd) | PbCu(Nd,Gd,Sm,Y)(CO3)3(OH) · 1.5H2O | Orth. mm2 |
11.9.6 | Tuliokite | Na6BaTh(CO3)6 · 6H2O | Trig. |
11.9.7 | Weloganite | Na2Sr3Zr(CO3)6 · 3H2O | Tric. 1 : P1 |
11.9.8 | Sabinaite | Na4Zr2TiO4(CO3)4 | Mon. 2/m : B2/b |
Fluorescence of Gysinite-(Nd)
None observed (SW or LW)
Other Information
Notes:
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)
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)
mindat.org URL:
https://www.mindat.org/min-1786.html
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External Links:
Mineral Dealers:
Localities for Gysinite-(Nd)
Locality List




All localities listed without proper references should be considered as questionable.
DR Congo | |
| Jason B Smith collection |
| 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). |
Germany | |
| No reference listed |
Italy | |
| Lapis 17(3), 35 (1992) |
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Sa Duchessa Mine, Oridda Valley, Domusnovas, South Sardinia Province, Sardinia, Italy