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Carlgieseckeite-(Nd)
A valid IMA mineral species
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About Carlgieseckeite-(Nd)
Karl Ludwig Giesecke
Formula:
NaNdCa3(PO4)3F
Colour:
Colorless with a faint greenish hue; Pink
Lustre:
Vitreous, Greasy
Hardness:
5
Specific Gravity:
3.91 (Calculated)
Crystal System:
Trigonal
Member of:
Name:
Named in honour of the mineralogist and polar explorer Carl (or Karl) Ludwig Giesecke (6 April 1761, Augsburg, Germany – 5 March 1833, Dublin, Ireland) who was the pioneer researcher in the mineralogy of Greenland.
Type Locality:
Isostructural with:
A mineral in the Belovite Group of the Apatite Supergroup. It is the first mineral of the apatite supergroup with Nd as a species-defining element.
Carlgieseckeite-(Nd) is the isostructural Nd- and Ca-dominant analogue of belovite-(Ce) and belovite-(La).
Carlgieseckeite-(Nd) is the isostructural Nd- and Ca-dominant analogue of belovite-(Ce) and belovite-(La).
Unique Identifiers
Mindat ID:
40295
Long-form identifier:
mindat:1:1:40295:8
IMA Classification of Carlgieseckeite-(Nd)
Classification of Carlgieseckeite-(Nd)
8.BN.05
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
N : With only large cations, (OH, etc.):RO4 = 0.33:1
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
N : With only large cations, (OH, etc.):RO4 = 0.33:1
41.8.11.
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
8 : A5(XO4)3Zq
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
8 : A5(XO4)3Zq
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Csk-Nd | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Carlgieseckeite-(Nd)
Vitreous, Greasy
Transparency:
Transparent
Comment:
Greasy on broken surfaces and vitrous on crystal faces
Colour:
Colorless with a faint greenish hue; Pink
Comment:
Colorless with a faint greenish hue in daylight; pink in yellow electric light
Streak:
White
Hardness:
5 on Mohs scale
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
3.91 g/cm3 (Calculated)
Chemistry of Carlgieseckeite-(Nd)
Mindat Formula:
NaNdCa3(PO4)3F
Element Weights:
Crystallography of Carlgieseckeite-(Nd)
Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
P3
Setting:
P3
Cell Parameters:
a = 9.4553(1) Å, c = 6.9825(1) Å
Ratio:
a:c = 1 : 0.738
Unit Cell V:
540.62 ų (Calculated from Unit Cell)
Morphology:
Hexagonal tabular, flattened on {001} crystals up to 0.25 x 1 x 1.3mm. Striated along [001]. Main forms: Pinacoid {001}. Faces on the prism zone,{hk0}, are probably {100}.
Twinning:
Microtwinning on {001} observed
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) |
|---|---|---|---|---|---|---|---|
| 0019705 | Carlgieseckeite-(Nd) | Pekov I V, Zubkova N V, Husdal T A, Kononkova N N, Agakhanov A A, Zadov A E, Pushcharovsky D Y (2012) Carlgieseckeite-(Nd), NaNdCa3(PO4)3F, a new belovite-group mineral species from the Ilimaussaq alkaline complex, South Greenland The Canadian Mineralogist 50 571-580 | 2012 | the Ilimaussaq alkaline complex, South Greenland | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 7.02 Å | (22) |
| 5.33 Å | (18) |
| 3.923 Å | (27) |
| 3.463 Å | (23) |
| 3.095 Å | (19) |
| 2.815 Å | (100) |
| 2.727 Å | (42) |
| 2.255 Å | (17) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 36 : Carbonatites, kimberlites, and related igneous rocks |
Type Occurrence of Carlgieseckeite-(Nd)
General Appearance of Type Material:
As hexagonal tabular Crystals up to 0.25 X 3 X 1.3 mm in size, and as epitactically overgrowing on prismatic crystals of Sr-bearing fluorapatite.
Place of Conservation of Type Material:
Type material is deposited in the collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, registration number 3996/1
Geological Setting of Type Material:
In cavities of an albite vein cross-cutting augite syenite
Associated Minerals at Type Locality:
Synonyms of Carlgieseckeite-(Nd)
Other Language Names for Carlgieseckeite-(Nd)
Dutch:Carlgieseckeiet-(Nd)
German:Carlgieseckeit-(Nd)
Relationship of Carlgieseckeite-(Nd) to other Species
Member of:
Other Members of Belovite Group:
| Belovite-(Ce) | NaCeSr3(PO4)3F | Trig. 3 : P3 |
| Belovite-(La) | NaLaSr3(PO4)3F | Trig. 3 : P3 |
| Deloneite | (Na0.5REE0.25Ca0.25)(Ca0.75REE0.25)Sr1.5(CaNa0.25REE0.25)(PO4)3F0.5(OH)0.5 | Trig. 3 : P3 |
| Fluorcaphite | SrCaCa3(PO4)3F | Hex. 6/m : P63/m |
| Fluorstrophite | SrCaSr3(PO4)3F | Hex. 6/m : P63/m |
| Kuannersuite-(Ce) | NaCeBa3(PO4)3F0.5Cl0.5 | Trig. 3 : P3 |
Related Minerals - Strunz-mindat Grouping
| 8.BN. | Fluoralforsite | Ba5(PO4)3F |
| 8.BN. | Aradite | BaCa6[(SiO4)(VO4)](VO4)2F |
| 8.BN. | Magganasite | CuFe3+3O(AsO4)3 |
| 8.BN. | Fluorpyromorphite | Pb5(PO4)3F |
| 8.BN. | Fluorsigaiite | Ca2Sr3(PO4)3F |
| 8.BN.05 | Pieczkaite | Mn5(PO4)3Cl |
| 8.BN.05 | Fluorapatite | Ca5(PO4)3F |
| 8.BN.05 | Fluorcaphite | SrCaCa3(PO4)3F |
| 8.BN.05 | Vanadinite | Pb5(VO4)3Cl |
| 8.BN.05 | Hedyphane | Ca2Pb3(AsO4)3Cl |
| 8.BN.05 | Hydroxylhedyphane | Ca2Pb3(AsO4)3(OH) |
| 8.BN.05 | 'Mimetite-M' | Pb5(AsO4)3Cl |
| 8.BN.05 | Johnbaumite | Ca5(AsO4)3(OH) |
| 8.BN.05 | Pliniusite | Ca5(VO4)3F |
| 8.BN.05 | 'Hydroxylapatite-M' | Ca5(PO4)3OH |
| 8.BN.05 | Hydroxylpyromorphite | Pb5(PO4)3(OH) |
| 8.BN.05 | Miyahisaite | (Sr,Ca)2Ba3(PO4)3F |
| 8.BN.05 | Belovite-(Ce) | NaCeSr3(PO4)3F |
| 8.BN.05 | Kuannersuite-(Ce) | NaCeBa3(PO4)3F0.5Cl0.5 |
| 8.BN.05 |
Kuannersuit Plateau, Ilímaussaq complex, Kujalleq, Greenland