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Synchysite-(Nd)

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Formula:
CaNd(CO3)2F
Colour:
Rose-pink, Pale gray-blue, light grass-green; pale violet to colourless (transmitted light)
Hardness:
Name:
From the Greek σύγχΰσις "synchys" for "confounding" in allusion to its initially being mistaken for parisite, and the "-(Nd)" suffix due to the dominance of neodymium in the composition.
Synchysite Group.

The neodymium analogue of Synchysite-(Ce) and Synchysite-(Y).


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Classification of Synchysite-(Nd)Hide

Approved
5/C.07-120
5.BD.20c

5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
D : With rare earth elements (REE)
16a.1.3.3

16a : ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
1 : (AB)(XO3)Zq
12.1.15

12 : Carbonates with other anions
1 : Carbonates with halides

Physical Properties of Synchysite-(Nd)Hide

Transparency:
Translucent
Colour:
Rose-pink, Pale gray-blue, light grass-green; pale violet to colourless (transmitted light)
Hardness:
4½ on Mohs scale

Optical Data of Synchysite-(Nd)Hide

Type:
Biaxial (+)
RI values:
nα = 1.610 nβ = 1.660 nγ = 1.740
Max Birefringence:
δ = 0.130
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v strong

Chemical Properties of Synchysite-(Nd)Hide

Formula:
CaNd(CO3)2F

Type Occurrence of Synchysite-(Nd)Hide

Other Language Names for Synchysite-(Nd)Hide

Relationship of Synchysite-(Nd) to other SpeciesHide

Other Members of this group:
Huanghoite-(Ce)BaCe(CO3)2FTrig. 3m (3 2/m) : R3m
Hydroxylsynchysite-(Ce)Ca(Ce,La)(CO3)2(OH)
Synchysite-(Ce)CaCe(CO3)2FMon. 2/m : B2/b
Synchysite-(La) Ca(La,Nd)(CO3)2F
Synchysite-(Y)CaY(CO3)2FMon. 2/m : B2/b

Related Minerals - Nickel-Strunz GroupingHide

5.BD.05Cordylite-(Ce)NaBaCe2(CO3)4F Hex.
5.BD.05Lukechangite-(Ce)Na3Ce2(CO3)4FHex. 6mm : P63mc
5.BD.10Zhonghuacerite-(Ce)Ba2Ce(CO3)3FTrig.
5.BD.10Kukharenkoite-(Ce)Ba2Ce(CO3)3FMon. 2/m : P21/m
5.BD.10Kukharenkoite-(La)Ba2(La,Ce,Th)(CO3)3FMon. 2/m : P21/m
5.BD.15Cebaite-(Ce)Ba3Ce2(CO3)5F2
5.BD.15Cebaite-(Nd)Ba3(Nd,Ce)2(CO3)5F2Mon.
5.BD.18Arisite-(Ce)NaCe2(CO3)2[F2x(CO3)1-x]FHex. 6 m2 : P6m2
5.BD.18Arisite-(La)NaLa2(CO3)2[F2x(CO3)1-x]FHex. 6 m2 : P6m2
5.BD.20aBastnäsite-(Ce)Ce(CO3)FHex. 6 m2 : P6c2
5.BD.20aBastnäsite-(La)La(CO3)FHex.
5.BD.20aBastnäsite-(Y)Y(CO3)FHex. 6 m2 : P62c
5.BD.20aHydroxylbastnäsite-(Ce)Ce(CO3)(OH)Hex. 6 : P6
5.BD.20aHydroxylbastnäsite-(Nd)Nd(CO3)(OH)Hex.
5.BD.20aHydroxylbastnäsite-(La)(La,Nd,Ce)(CO3)(OH,F)Hex.
5.BD.20bParisite-(Ce)CaCe2(CO3)3F2Mon. m : Bb
5.BD.20bParisite-(Nd)Ca(Nd,Ce,La)2(CO3)3F2
5.BD.20dRöntgenite-(Ce)Ca2(Ce,La)3(CO3)5F3Trig. 3 : R3
5.BD.20cSynchysite-(Ce)CaCe(CO3)2FMon. 2/m : B2/b
5.BD.20cSynchysite-(Y)CaY(CO3)2FMon. 2/m : B2/b
5.BD.20aThorbastnäsiteThCa(CO3)2F2 · 3H2O
5.BD.20aBastnäsite-(Nd)Nd(CO3)F Hex. 6 m2 : P62c
5.BD.25Horváthite-(Y)NaY(CO3)F2Orth. mmm (2/m 2/m 2/m) : Pmmn
5.BD.25Qaqarssukite-(Ce)Ba(Ce,REE)(CO3)2FTrig. 3 : P3
5.BD.35Huanghoite-(Ce)BaCe(CO3)2FTrig. 3m (3 2/m) : R3m

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

16a.1.3.1Synchysite-(Ce)CaCe(CO3)2FMon. 2/m : B2/b
16a.1.3.2Synchysite-(Y)CaY(CO3)2FMon. 2/m : B2/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

12.1.1NorthupiteNa3Mg(CO3)2ClIso. m3 (2/m 3) : Fd3
12.1.2BarentsiteNa7Al(HCO3)2(CO3)2F4Tric.
12.1.3RouvilleiteNa3(Ca,Mn,Fe)2(CO3)3FMon. 2/m : B2/b
12.1.4ChlormagaluminiteMg4Al2(OH)12Cl2 · 3H2OHex.
12.1.5DeferniteCa6(CO3)2-x(SiO4)x(OH)7(Cl,OH)1-2x (x<0.5)Orth. mmm (2/m 2/m 2/m) : Pnma
12.1.6BrenkiteCa2(CO3)F2Orth.
12.1.7Stenonite(Sr,Ba,Na)2Al(CO3)F5Mon. 2/m
12.1.8Bastnäsite-(Ce)Ce(CO3)FHex. 6 m2 : P6c2
12.1.9Bastnäsite-(La)La(CO3)FHex.
12.1.10Bastnäsite-(Y)Y(CO3)FHex. 6 m2 : P62c
12.1.11Parisite-(Ce)CaCe2(CO3)3F2Mon. m : Bb
12.1.12Parisite-(Nd)Ca(Nd,Ce,La)2(CO3)3F2
12.1.13Synchysite-(Ce)CaCe(CO3)2FMon. 2/m : B2/b
12.1.14Synchysite-(Y)CaY(CO3)2FMon. 2/m : B2/b
12.1.16Röntgenite-(Ce)Ca2(Ce,La)3(CO3)5F3Trig. 3 : R3
12.1.17Cordylite-(Ce)NaBaCe2(CO3)4F Hex.
12.1.19Huanghoite-(Ce)BaCe(CO3)2FTrig. 3m (3 2/m) : R3m
12.1.20Zhonghuacerite-(Ce)Ba2Ce(CO3)3FTrig.
12.1.21Cebaite-(Ce)Ba3Ce2(CO3)5F2
12.1.22ThorbastnäsiteThCa(CO3)2F2 · 3H2O
12.1.23PhosgenitePb2CO3Cl2Tet. 4/mmm (4/m 2/m 2/m) : P4/mbm
12.1.24BarstowitePb4Cl6(CO3) · H2OMon. 2/m : P21/m
12.1.25AlbrechtschraufiteCa4Mg(UO2)2(CO3)6F2 · 17-18H2OTric. 1 : P1
12.1.26KettneriteCaBiCO3OFOrth. mmm (2/m 2/m 2/m)

Other InformationHide

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 Synchysite-(Nd)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Maksimović, Z. and Pantó, G. (1978): Minerals of the rare-earth elements in karstic bauxites: synchisite-(Nd), a new mineral from the Grebnik deposit. Proc. 4th International Congress for the study of bauxites, alumina, and aluminum, Athens, 540-553. [Abs. in American Mineralogist (1979): 64: 658.]
Scharm, B. & Kühn, P. (1983): Synchysite-(Nd), Ca(Nd,Y,Gd,...)[F|(CO3)2], a new mineral. Neues Jahrbuch für Mineralogie, Monatshefte 1983, 201-210.
Canadian Mineralogist (1994): 32: 865.

Internet Links for Synchysite-(Nd)Hide

Localities for Synchysite-(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.
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Liberec Region
      • Česká Lípa (Böhmische Leipa)
        • Stráž (Wartenberg)
Scharm, B. & Kühn, P. (1983): Synchysite-(Nd), Ca(Nd,Y,Gd,...)[F|(CO3)2], a new mineral. Neues Jahrbuch für Mineralogie, Monatshefte 1983, 201-210.
Scharm, B.: Přehled minerálů nalezených v oblasti uranových koncentrací v severočeské křídě. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1995, roč. 3, s. 169-172.
Finland
 
  • Western and Inner Finland Region
    • Valkeakoski
Vorma, A., Ojanperä, P., Hoffrén, V., Siivola, J. & Löfgren, A.(1966): On the rare earth minerals from the Pyörönmaa pegmatite in Kangasala, SW-Finland. Bulletin de la Commission Géologique Finlande 222. 241-274;
Italy
 
  • Aosta Valley
    • Courmayeur
      • Monte Bianco Massif (Mont Blanc Massif)
        • Ferret Valley
Palenzona, A. & Martinelli, A. (2009): Sinchisite-(Nd) al Vallone del Triolet, Courmayeur, Aosta. Rivista Mineralogica Italiana, 2/2009, 122-124.
Kosovo (TL)
 
  • District of Peja (District of Peć)
    • Klina (Klinë)
Maksimović, Z. and Pantó, G. (1978): Minerals of the rare-earth elements in karstic bauxites: synchisite-(Nd), a new mineral from the Grebnik deposit. Proc. 4th International Congress for the study of bauxites, alumina, and aluminum, Athens, 540-553 [Abs. in Am. Min. (1979), 64, 658]; NJMM (1983), 201; Lapis 3 (2001), 8
Norway
 
  • Nordland
    • Tysfjord
      • Drag
        • Lapplægeret
Husdal, T. (2011): Tysfjordgranittens pegmatitter. Stein. 38 (4): 4-35
  • Telemark
    • Nome
      • Fen Complex
Andersen, T. (1986) Compositional variation of some rare earth minerals from the Fen complex (Telemark, SE Norway): implications for the mobility of rare earths in a carbonatite system. Mineralogical Magazine: 50: 503-509.
South Africa
 
  • Limpopo Province
    • Sekhukhune District
      • Groblersdal
Atanasova, M., Cairncross, B. and Windisch, W.R. (2016) Microminerals of the Bushveld Complex, South Africa. Popular Geoscience Series 6, Council for Geoscience, Pretoria, South Africa, 110 pg
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