Sazykinaite-(Y)
A valid IMA mineral species
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About Sazykinaite-(Y)
Ludmila B. Sazykin
Formula:
Na5YZr[SiO3]6 · 6H2O
Colour:
Light green to yellow
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
2.67
Crystal System:
Trigonal
Member of:
Name:
Named in honor of Ludmila Borisovna Sazykina (Людмила Борисовна Сазыкина) (b. 27 June 1934, Leningrad, USSR), Russian mineralogist and artist of the Kola peninsula, Murmanskaja Oblast', Russia.
Type Locality:
This page provides mineralogical data about Sazykinaite-(Y).
Unique Identifiers
Mindat ID:
3547
Long-form identifier:
mindat:1:1:3547:3
IMA Classification of Sazykinaite-(Y)
Approved
IMA Formula:
Na5YZr4+Si6O18·6H2O
Approval year:
1992
First published:
1993
Classification of Sazykinaite-(Y)
9.DM.10
9 : SILICATES (Germanates)
D : Inosilicates
M : Inosilicates with 6-periodic single chains
9 : SILICATES (Germanates)
D : Inosilicates
M : Inosilicates with 6-periodic single chains
59.2.3.3
59 : CYCLOSILICATES Three-Membered Rings
2 : Three-Membered Rings, hydrated
59 : CYCLOSILICATES Three-Membered Rings
2 : Three-Membered Rings, hydrated
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 |
|---|---|---|
| Szn-Y | 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 Sazykinaite-(Y)
Vitreous
Transparency:
Transparent, Translucent
Colour:
Light green to yellow
Streak:
White
Hardness:
5 on Mohs scale
Tenacity:
Fragile
Cleavage:
Imperfect/Fair
imperfect cleavage {0112}
imperfect cleavage {0112}
Density:
2.67(5) g/cm3 (Measured) 2.74 g/cm3 (Calculated)
Optical Data of Sazykinaite-(Y)
Type:
Uniaxial (-)
RI values:
nω = 1.585 nε = 1.578
Max. Birefringence:
δ = 0.007
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
Chemistry of Sazykinaite-(Y)
Mindat Formula:
Na5YZr[SiO3]6 · 6H2O
Element Weights:
Crystallography of Sazykinaite-(Y)
Crystal System:
Trigonal
Class (H-M):
32 - Trapezohedral
Space Group:
R32
Cell Parameters:
a = 10.825(5) Å, c = 15.809(4) Å
Ratio:
a:c = 1 : 1.46
Unit Cell V:
1,604.32 ų (Calculated from Unit Cell)
Z:
3
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) |
|---|---|---|---|---|---|---|---|
| 0014193 | Sazykinaite-(Y) | Rastsvetaeva R K, Khomyakov A P (1992) Crystal structure of a rare earth analog of hilairite Kristallografiya 37 1561-1563 | 1992 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 6.03 Å | (32) |
| 5.40 Å | (63) |
| 3.236 Å | (84) |
| 3.127 Å | (88) |
| 3.030 Å | (100) |
| 2.708 Å | (19) |
| 2.018 Å | (18) |
| 1.805 Å | (21) |
Comments:
Koashva Mountain, Kola Peninsula, Russia. The data are 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 Sazykinaite-(Y)
General Appearance of Type Material:
Forms intergrowths with labuntsovite. Occurs typically as rhombohedral crystals up to 0.5-2 mm across.
Place of Conservation of Type Material:
Type material is at the Fersman Mineralogical Museum, Moscow, and the Museum of the Gorny Institute, Saint Petersburg, Russia.
Associated Minerals at Type Locality:
Synonyms of Sazykinaite-(Y)
Other Language Names for Sazykinaite-(Y)
Relationship of Sazykinaite-(Y) to other Species
Member of:
Other Members of Hilairite Group:
| Calciohilairite | CaZr[SiO3]3 · 3H2O | Trig. 32 : R32 |
| Hilairite | Na2Zr[SiO3]3 · 3H2O | Trig. 32 : R32 |
| Komkovite | BaZr[Si3O9] · 3H2O | Trig. 32 : R32 |
| Pyatenkoite-(Y) | Na5YTi[SiO3]6 · 6H2O | Trig. 32 : R32 |
Common Associates
Associations Based on Photo Data:
| 10 photos of Sazykinaite-(Y) associated with Aegirine | NaFe3+Si2O6 |
| 8 photos of Sazykinaite-(Y) associated with Kostylevite | K2Zr(Si3O9) · H2O |
| 5 photos of Sazykinaite-(Y) associated with Sitinakite | KNa2Ti4(SiO4)2O5(OH) · 4H2O |
| 4 photos of Sazykinaite-(Y) associated with Lemmleinite-K | K2(Ti,Nb)2(Si4O12)(OH,O)2 · 4H2O |
| 3 photos of Sazykinaite-(Y) associated with Albite | Na(AlSi3O8) |
| 2 photos of Sazykinaite-(Y) associated with Rhabdophane-(Ce) | Ce(PO4) · 0.6H2O |
| 1 photo of Sazykinaite-(Y) associated with Lamprophyllite | (Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2 |
| 1 photo of Sazykinaite-(Y) associated with Natrolite | Na2Al2Si3O10 · 2H2O |
Related Minerals - Strunz-mindat Grouping
| 9.DM. | Kesebolite-(Ce) | CeCa2Mn(AsO4)(SiO3)3 |
| 9.DM.05 | Stokesite | CaSn[Si3O9] · 2H2O |
| 9.DM.10 | Calciohilairite | CaZr[SiO3]3 · 3H2O |
| 9.DM.10 | Pyatenkoite-(Y) | Na5YTi[SiO3]6 · 6H2O |
| 9.DM.10 | Hilairite | Na2Zr[SiO3]3 · 3H2O |
| 9.DM.10 | Komkovite | BaZr[Si3O9] · 3H2O |
| 9.DM.15 | Plumbogaidonnayite | PbZrSi3O9 · 2H2O |
| 9.DM.15 | Gaidonnayite | Na2Zr(Si3O9) · 2H2O |
| 9.DM.15 | Georgechaoite | NaKZr[Si3O9] · 2H2O |
| 9.DM.20 | Chkalovite | Na2BeSi2O6 |
| 9.DM.25 | Vlasovite | Na2ZrSi4O11 |
| 9.DM.30 | Revdite | Na16Si16O27(OH)26 · 28H2O |
| 9.DM.35 | Scheuchzerite | Na(Mn,Mg,Zn)9[VSi9O28(OH)](OH)3 |
| 9.DM.40 | Terskite | Na4ZrSi6O16 · 2H2O |
| 9.DM.40 | Hydroterskite | Na2ZrSi6O12(OH)6 |
Other Information
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 Sazykinaite-(Y)
mindat.org URL:
https://www.mindat.org/min-3547.html
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References for Sazykinaite-(Y)
Localities for Sazykinaite-(Y)
Showing 4 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. (2000) |
Russia | |
| Arzamastsev et al. (2008) |
| Arzamastsev et al. (2008) | |
| 33 IGC excursion No 47 +4 other references |
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Koashva Open Pit, Koashva Mt, Murmansk Oblast, Russia