Sazhinite-(Ce)
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Sazhinite-(Ce)
Nikolai P. Sazhina
Formula:
Na3CeSi6O15 · 2H2O
Colour:
Light gray, white, cream
Lustre:
Vitreous, Pearly
Hardness:
2 - 3
Specific Gravity:
2.61
Crystal System:
Orthorhombic
Member of:
Name:
Named sazhinite by E.M. Eskova, et al., in 1974, after Nikolai Petrovich Sazhina (2 (14) March 1898, Yekaterinburg, Russian Empire - 23 February 1969, Moscow, USSR), professor of Metallurgy, Mendeleev Moscow Institute of Chemical Engineering and a pioneer in the Russian rare earth industry. The '-(Ce)' suffix was added later to denote the dominant rare earth element (Nickel and Mandarino 1987).
The Ce analogue of sazhinite-(La).
See also Unnamed (Sazhinite-related mineral I) and Unnamed (Sazhinite-related mineral II).
See also Unnamed (Sazhinite-related mineral I) and Unnamed (Sazhinite-related mineral II).
Unique Identifiers
Mindat ID:
3546
Long-form identifier:
mindat:1:1:3546:6
Similar Names
| Sazhinit | ||
| Sazhinita | ||
| Sazhinite | ||
| Sazhinite-(La) | A valid IMA mineral species | Na3La[Si6O15] · 2H2O |
IMA Classification of Sazhinite-(Ce)
Approved
IMA status notes:
Renamed by the IMA
IMA Formula:
Na3Ce3+Si6O15·2H2O
Approval year:
1973
First published:
1974
Classification of Sazhinite-(Ce)
9.EA.30
9 : SILICATES (Germanates)
E : Phyllosilicates
A : Single nets of tetrahedra with 4-, 5-, (6-), and 8-membered rings
9 : SILICATES (Germanates)
E : Phyllosilicates
A : Single nets of tetrahedra with 4-, 5-, (6-), and 8-membered rings
72.2.1.3
72 : PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
2 : Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-, 6-, and 8-membered rings
72 : PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
2 : Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-, 6-, and 8-membered rings
14.8.6
14 : Silicates not Containing Aluminum
8 : Silicates of Group III metals other than Al
14 : Silicates not Containing Aluminum
8 : Silicates of Group III metals other than Al
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 |
|---|---|---|
| Szi-Ce | 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 Sazhinite-(Ce)
Vitreous, Pearly
Transparency:
Transparent, Translucent
Colour:
Light gray, white, cream
Hardness:
2 - 3 on Mohs scale
Hardness:
VHN10=153 - 258 kg/mm2 - Vickers
Cleavage:
Perfect
Perfect on {100}, {010}, {001}
Perfect on {100}, {010}, {001}
Density:
2.61 g/cm3 (Measured) 2.80 g/cm3 (Calculated)
Optical Data of Sazhinite-(Ce)
Type:
Biaxial (+)
RI values:
nα = 1.525 nβ = 1.528 nγ = 1.544
2V:
Measured: 47° , Calculated: 48°
Max. Birefringence:
δ = 0.019
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
Surface Relief:
Moderate
Dispersion:
r > v
Optical Extinction:
X = c; Y = b; Z = a.
Chemistry of Sazhinite-(Ce)
Mindat Formula:
Na3CeSi6O15 · 2H2O
Element Weights:
Crystallography of Sazhinite-(Ce)
Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Space Group:
Pmm2
Cell Parameters:
a = 7.50(3) Å, b = 15.62(6) Å, c = 7.35(3) Å
Ratio:
a:b:c = 0.48 : 1 : 0.471
Unit Cell V:
861.05 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Tabular to thick tabular crystals, striated along their length. Also as irregular grains and dense, fine-grained aggregates.
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
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) |
|---|---|---|---|---|---|---|---|
| 0015583 | Sazhinite-(Ce) | Shumyatskaya N G, Voronkov A A, Pyatenko Y A (1980) Sazhinite, Na2Ce[Si6O14(OH)]*nH2O: a new representative of the dalyite family in crystal chemistry Soviet Physics Crystallography 25 419-423 | 1980 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 7.25 Å | (38) |
| 5.23 Å | (55) |
| 3.37 Å | (75) |
| 3.30 Å | (35) |
| 3.23 Å | (100) |
| 2.552 Å | (37) |
| 2.003 Å | (38) |
| 1.953 Å | (32) |
Comments:
Lovozero massif, Russia. Data from the type description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 35 : Ultra-alkali and agpaitic igneous rocks |
Type Occurrence of Sazhinite-(Ce)
General Appearance of Type Material:
Crystals tabular to thick tabular, striated along their length, to 1.5 cm. As irregular grains and dense, fine-grained aggregates. As disseminations in natrolite and as rims around altered grains of steenstrupine.
Place of Conservation of Type Material:
Geology Museum, Kola Branch, Academy of Sciences, Apatity, 3386; Mining Institute, St. Petersburg, 1082/1; Institute of Mineralogy and Geochemistry of Rare Elements, Moscow; A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 75511, 75838, 76105; The Natural History Museum, London, England, 1994,28
Associated Minerals at Type Locality:
Synonyms of Sazhinite-(Ce)
Other Language Names for Sazhinite-(Ce)
Relationship of Sazhinite-(Ce) to other Species
Member of:
Other Members of Dalyite Group:
| Dalyite | K2ZrSi6O15 | Tric. 1 : P1 |
| Davanite | K2TiSi6O15 | Tric. |
| Sazhinite-(La) | Na3La[Si6O15] · 2H2O | Orth. mm2 : Pmm2 |
Common Associates
Associations Based on Photo Data:
| 8 photos of Sazhinite-(Ce) associated with Tuperssuatsiaite | Fe3+Fe3+2(Na◻)◻2Si8O20(OH)2(H2O)4 · 2H2O |
| 6 photos of Sazhinite-(Ce) associated with Natrolite | Na2Al2Si3O10 · 2H2O |
| 5 photos of Sazhinite-(Ce) associated with Aegirine | NaFe3+Si2O6 |
| 4 photos of Sazhinite-(Ce) associated with Steenstrupine-(Ce) | Na14Mn2+2Fe3+2Ce6Zr(Si6O18)2(PO4)6(PO3OH)(OH)2 · 2H2O |
| 3 photos of Sazhinite-(Ce) associated with Manganoneptunite | KNa2Li(Mn2+)2Ti2[Si4O12]2 |
| 3 photos of Sazhinite-(Ce) associated with Serandite | NaMn2+2Si3O8(OH) |
| 2 photos of Sazhinite-(Ce) associated with Vitusite-(Ce) | Na3(Ce,La,Nd)(PO4)2 |
| 2 photos of Sazhinite-(Ce) associated with Mountainite | KNa2Ca2[Si8O19(OH)] · 6H2O |
| 2 photos of Sazhinite-(Ce) associated with Sazhinite-(La) | Na3La[Si6O15] · 2H2O |
| 1 photo of Sazhinite-(Ce) associated with Laplandite-(Ce) | Na4CeTiPO4Si7O18 · 5H2O |
Related Minerals - Strunz-mindat Grouping
| 9.EA. | Hydroxymcglassonite-(K) | KSr4Si8O20(OH) · 8H2O |
| 9.EA. | Miyawakiite-(Y) | ◻Y4Fe2(Si8O20)(CO3)4(H2O)3 |
| 9.EA. | Bussyite-(Y) | (Y,REE,Ca)3(Na,Ca)6MnSi9Be5(O,OH,F)34 |
| 9.EA. | Fluorapophyllite-(NH4) | NH4Ca4(Si8O20)F · 8H2O |
| 9.EA.05 | Gillespite | BaFe2+Si4O10 |
| 9.EA.05 | Cuprorivaite | CaCuSi4O10 |
| 9.EA.05 | Wesselsite | SrCuSi4O10 |
| 9.EA.05 | Effenbergerite | BaCuSi4O10 |
| 9.EA.07 | Fluorapophyllite-(Cs) | CsCa4(Si8O20)F · 8H2O |
| 9.EA.10 | Ekanite | Ca2ThSi8O20 |
| 9.EA.15 | Fluorapophyllite-(Na) | NaCa4(Si8O20)F · 8H2O |
| 9.EA.15 | Fluorapophyllite-(K) | KCa4(Si8O20)(F,OH) · 8H2O |
| 9.EA.15 | Hydroxyapophyllite-(K) | KCa4(Si8O20)(OH,F) · 8H2O |
| 9.EA.20 | Magadiite | Na2Si14O29 · 11H2O |
| 9.EA.25 | Dalyite | K2ZrSi6O15 |
| 9.EA.25 | Davanite | K2TiSi6O15 |
| 9.EA.30 | Sazhinite-(La) | Na3La[Si6O15] · 2H2O |
| 9.EA.35 | Armstrongite | CaZr[Si6O15] · 3H2O |
| 9.EA.40 | Okenite | Ca10Si18O46 · 18H2O |
| 9.EA.45 | Perettiite-(Y) | Y2Mn4FeSi2B8O24 |
| 9.EA.45 | Nekoite | Ca3Si6O15 · 7H2O |
| 9.EA.45 | Badakhshanite-(Y) | Y2Mn4Al(Si2B7BeO24) |
| 9.EA.47 | Shlykovite | KCa[Si4O9(OH)] · 3H2O |
| 9.EA.50 | Diegogattaite | Na2CaCu2Si8O20 · H2O |
| 9.EA.50 | Cavansite | Ca(VO)Si4O10 · 4H2O |
| 9.EA.52 | Yangite | PbMnSi3O8 · H2O |
| 9.EA.55 | Pentagonite | Ca(VO)Si4O10 · 4H2O |
| 9.EA.60 | Penkvilksite | Na4Ti2Si8O22 · 4H2O |
| 9.EA.60 | Tumchaite | Na2Zr(Si4O11) · 2H2O |
| 9.EA.65 | Nabesite | Na2BeSi4O10 · 4H2O |
| 9.EA.70 | Ajoite | (K,Na)Cu7AlSi9O24(OH)6 · 3H2O |
| 9.EA.75 | Zeravshanite | Na2Cs4Zr3[Si18O45]*2H2O |
| 9.EA.80 | Bussyite-(Ce) | (Ce,REE)3(Na,H2O)6MnSi9Be5(O,OH)30F4 |
| 9.EA.85 | Plumbophyllite | Pb2Si4O10 · H2O |
Other Information
IR Spectrum:
The IR spectrum is diffuse, indicating a strongly disordered structure.
Thermal Behaviour:
DTA shows a series of endothermic effects at 130-330°C, corresponding to the loss of water.
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 Sazhinite-(Ce)
mindat.org URL:
https://www.mindat.org/min-3546.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Sazhinite-(Ce)
Localities for Sazhinite-(Ce)
Showing 8 localities.
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Canada | |
| Horváth et al. (1990) |
| Horváth et al. (1998) |
| Horváth et al. (1998) | |
Namibia | |
| Uwe Kolitsch (single-crystal X-ray diffraction + SEM-EDS) +2 other references |
Russia (TL) | |
| Eskova et al. (1974) +3 other references |
Spain | |
| Dill et al. (2023) |
| Dill et al. (2023) |
| Dill et al. (2023) |
Quick NavTopAbout Sazhinite-(Ce)Unique IdentifiersSimilar NamesIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Aris Quarries, Aris, Windhoek Rural, Khomas Region, Namibia