Named for its relation to the other synchysite group species, with the "-(Nd)" suffix denoting the dominance of neodymium in the composition. The root name is from the Greek σύγχΰσις "synchys" for "confounding" in allusion to its initially being mistaken for parisite.

Type Locality:

ⓘ Grebnik Mountain, Klina (Klinë), Peć District, Kosovo

Synchysite Group.

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

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Unique IdentifiersHide

Mindat ID:

3854

Long-form identifier:

mindat:1:1:3854:2

GUID
(UUID V4):

cafbe95c-7f10-4bf7-8fec-62ff7cfdce3f

IMA Classification of Synchysite-(Nd)Hide

IMA status:

Approved

First published:

1978

Type description reference:

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.

Classification of Synchysite-(Nd)Hide

Strunz-mindat (2024):

5.BD.20c

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

Dana 8th ed.:

16a.1.3.3

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

Hey's CIM Ref.:

12.1.15

12 : Carbonates with other anions
1 : Carbonates with halides

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

Symbol	Source	Reference
Syn-Nd	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Syn	The Canadian Mineralogist (2019)	The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of Synchysite-(Nd)Hide

Lustre:

Dull

Transparency:

Transparent, Translucent

Colour:

Rose-pink, Pale gray-blue, light grass-green; pale violet to colourless (transmitted light)

Streak:

White

Hardness:

4½ on Mohs scale

Comment:

1 in aggregates

Density:

4.14 g/cm³ (Calculated)

Optical Data of Synchysite-(Nd)Hide

Type:

Biaxial (+)

RI values:

n_α = 1.610 n_β = 1.660 n_γ = 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

Chemistry of Synchysite-(Nd)Hide

Mindat Formula:

CaNd(CO₃)₂F

Elements listed:

C, Ca, F, Nd, O - search for minerals with similar chemistry

Crystallography of Synchysite-(Nd)Hide

Crystal System:

Orthorhombic

Cell Parameters:

a = 4.039(2) Å, b = 6.984(4) Å, c = 54.27(5) Å

Ratio:

a:b:c = 0.578 : 1 : 7.771

Unit Cell V:

1,530.87 Å³ (Calculated from Unit Cell)

Comment:

Pseudohexagonal

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
4.52 Å	(100)
9.04 Å	(60)
2.77 Å	(36)
1.898 Å	(33)
3.50 Å	(19)
3.25 Å	(16)
2.26 Å	(16)

Comments:

Holičky deposit, Czech Republic. Data from Scharm and Kühn (1983).

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 4b: Highly evolved igneous rocks	>3.0
34 : Complex granite pegmatites
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of Synchysite-(Nd)Hide

Type Locality:

ⓘ Grebnik Mountain, Klina (Klinë), Peć District, Kosovo

General Appearance of Type Material:

As bladed crystals, to 0.036 mm, in radial to platy aggregates.

Place of Conservation of Type Material:

Charles University, Prague, Czech Republic, 21242, National Museum of Natural History, Washington, D.C., USA, 161213.

Geological Setting of Type Material:

In a bauxite deposit, near the limestone footwall.

Reference:

Synonyms of Synchysite-(Nd)Hide

Synchysite (in part)

Other Language Names for Synchysite-(Nd)Hide

German:Synchisit-(Nd)

Spanish:Sinchisita-(Nd)

Relationship of Synchysite-(Nd) to other SpeciesHide

Member of:

Synchysite Group

Other Members of this group:

Huanghoite-(Ce)	BaCe(CO₃)₂F	Trig. 3m (3 2/m) : R3m
Hydroxylsynchysite-(Ce)	Ca(Ce,La)(CO₃)₂(OH)
Synchysite-(Ce)	CaCe(CO₃)₂F	Mon. 2/m : B2/b
Synchysite-(La)	Ca(La,Nd)(CO₃)₂F
Synchysite-(Y)	CaY(CO₃)₂F	Mon. 2/m : B2/b

Common AssociatesHide

Associated Minerals Based on Photo Data:

2 photos of Synchysite-(Nd) associated with Bastnäsite-(Ce)	Ce(CO₃)F
1 photo of Synchysite-(Nd) associated with Magnetite	Fe²⁺Fe³⁺₂O₄

Related Minerals - Strunz-mindat Grouping Hide

5.BD.	Cordylite-(La)	(Na,Ca)Ba(La,Ce,Sr)₂(CO₃)₄F	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
5.BD.05	Cordylite-(Ce)	NaBaCe₂(CO₃)₄F	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
5.BD.05	Lukechangite-(Ce)	Na₃Ce₂(CO₃)₄F	Hex. 6mm : P6₃mc
5.BD.05	Unnamed (Cordylite-like (Ca0.5[]0.5)BaCe2[CO3]4F)	Ca◻Ba₂Ce₄[CO₃]₈F₂
5.BD.10	Zhonghuacerite-(Ce)	Ba₂Ce(CO₃)₃F	Trig.
5.BD.10	Kukharenkoite-(Ce)	Ba₂Ce(CO₃)₃F	Mon. 2/m : P2₁/m
5.BD.10	Kukharenkoite-(La)	Ba₂(La,Ce,Th)(CO₃)₃F	Mon. 2/m : P2₁/m
5.BD.15	Cebaite-(Ce)	Ba₃Ce₂(CO₃)₅F₂	Mon. 2/m : B2/m
5.BD.15	Cebaite-(Nd)	Ba₃(Nd,Ce)₂(CO₃)₅F₂	Mon.
5.BD.18	Arisite-(Ce)	NaCe₂(CO₃)₂[F_2x(CO₃)_1-x]F	Hex. 6 m2 : P6m2
5.BD.18	Arisite-(La)	NaLa₂(CO₃)₂[F_2x(CO₃)_1-x]F	Hex. 6 m2 : P6m2
5.BD.20a	Bastnäsite-(Ce)	Ce(CO₃)F	Hex. 6 m2 : P6c2
5.BD.20a	Bastnäsite-(La)	La(CO₃)F	Hex. 6 m2 : P6₂c
5.BD.20a	Bastnäsite-(Y)	Y(CO₃)F	Hex. 6 m2 : P6₂c
5.BD.20a	Hydroxylbastnäsite-(Ce)	Ce(CO₃)(OH)	Hex. 6 : P6
5.BD.20a	Hydroxylbastnäsite-(Nd)	Nd(CO₃)(OH)	Hex. 6 m2 : P6₂c
5.BD.20a	Hydroxylbastnäsite-(La)	(La,Nd,Ce)(CO₃)(OH,F)	Hex. 6 : P6
5.BD.20b	Parisite-(Ce)	CaCe₂(CO₃)₃F₂	Mon. m : Bb
5.BD.20b	Parisite-(Nd)	Ca(Nd,Ce,La)₂(CO₃)₃F₂
5.BD.20d	Röntgenite-(Ce)	Ca₂(Ce,La)₃(CO₃)₅F₃	Trig. 3 : R3
5.BD.20c	Synchysite-(Ce)	CaCe(CO₃)₂F	Mon. 2/m : B2/b
5.BD.20c	Synchysite-(Y)	CaY(CO₃)₂F	Mon. 2/m : B2/b
5.BD.20a	Thorbastnäsite	ThCa(CO₃)₂F₂ · 3H₂O	Hex. 6 m2 : P6₂c
5.BD.20a	Bastnäsite-(Nd)	Nd(CO₃)F	Hex. 6 m2 : P6₂c
5.BD.20c	Hydroxylsynchysite-(Ce)	Ca(Ce,La)(CO₃)₂(OH)
5.BD.20c	Synchysite-(La)	Ca(La,Nd)(CO₃)₂F
5.BD.20b	Parisite-(La)	CaLa₂(CO₃)₃F₂	Mon.
5.BD.25	Horváthite-(Y)	NaY(CO₃)F₂	Orth. mmm (2/m 2/m 2/m) : Pmmn
5.BD.25	Qaqarssukite-(Ce)	Ba(Ce,REE)(CO₃)₂F	Trig. 3 : P3
5.BD.35	Huanghoite-(Ce)	BaCe(CO₃)₂F	Trig. 3m (3 2/m) : R3m
5.BD.45	Bayanoboite-(Y)	Ba₂Y(CO₃)₂F₃	Orth. mmm (2/m 2/m 2/m) : Pbcn

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.

Internet Links for Synchysite-(Nd)Hide

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https://www.mindat.org/min-3854.html
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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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References for Synchysite-(Nd)Hide

Reference List:

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.

(2023) Synchysite-(Nd) Handbook of Mineralogy. Mineralogical Society of America

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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.


Czech Republic
Liberec Region Česká Lípa District Ralsko Holičky ⓘ Holičky deposit	Scharm et al. (1983)
ⓘ North Bohemian Uranium District	Scharm +7 other references

Finland
Pirkanmaa Valkeakoski ⓘ Pyörönmaa pegmatite	Vorma et al. (1966)

Hungary
Baranya County Komló District Komló ⓘ Coal Mine (Deep level)	SZAKÁLL et al. (2003)

Italy
Aosta Valley Courmayeur ⓘ Triolet Glacier	Palenzona et al. (2009)

Kosovo (TL)
Peć District Klina (Klinë) ⓘ Grebnik Mountain (TL)	Maksimović et al. (1978) +2 other references

Norway
Nordland Hamarøy Drag Lapplægeret ⓘ Øvre Lapplægeret Quarry	Husdal (2011)
Telemark Nome ⓘ Fen Iron Mines ?	Andersen (1986)

South Africa
Limpopo Sekhukhune District Municipality Elias Motsoaledi Local Municipality Groblersdal ⓘ Houtenbeck	Atanasova et al. (2016)

Switzerland
Valais Martigny Mont Chemin mining district ⓘ ~~Les Valettes~~	Perroud et al. (1987) +1 other reference

Synchysite-(Nd)