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Zirsinalite

A valid IMA mineral species
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About ZirsinaliteHide

Formula:
Na6(Ca,Mn2+,Fe2+)Zr(Si6O18)
Colour:
Colourless, yellowish-grey
Lustre:
Vitreous, Dull
Hardness:
5½
Specific Gravity:
2.88 - 2.92
Crystal System:
Trigonal
Name:
Named after its chemical composition containing Zirconium (Zr), Silicon (Si) and Sodium (Na, from Latin 'natrium').

Unique IdentifiersHide

Mindat ID:
4427
Long-form identifier:
mindat:1:1:4427:7

IMA Classification of ZirsinaliteHide

Classification of ZirsinaliteHide

9.CJ.15a

9 : SILICATES (Germanates)
C : Cyclosilicates
J : [Si6O18]12- 6-membered single rings (sechser-Einfachringe), without insular complex anions
61.1.2a.4

61 : CYCLOSILICATES Six-Membered Rings
1 : Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
14.10.32

14 : Silicates not Containing Aluminum
10 : Silicates of Zr or Hf

Mineral SymbolsHide

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

SymbolSourceReference for Standard
ZslIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of ZirsinaliteHide

Vitreous, Dull
Transparency:
Transparent
Comment:
Vitreous on fresh surfaces, quickly tarnishes
Colour:
Colourless, yellowish-grey
Hardness:
5½ on Mohs scale
Hardness:
VHN100=640 - 720 - Vickers
Cleavage:
None Observed
Fracture:
Conchoidal
Comment:
Fracture 'granular or small conchoidal'
Density:
2.88 - 2.92 g/cm3 (Measured)    3.08 g/cm3 (Calculated)

Optical Data of ZirsinaliteHide

Type:
Uniaxial (-)
RI values:
nω = 1.610 nε = 1.605
Max. Birefringence:
δ = 0.005
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.

Surface Relief:
Moderate

Chemistry of ZirsinaliteHide

Mindat Formula:
Na6(Ca,Mn2+,Fe2+)Zr(Si6O18)
Element Weights:
Element% weight
O39.682 %
Si23.219 %
Na19.007 %
Zr12.570 %
Ca5.522 %

Calculated from ideal end-member formula.
Common Impurities:
Ti,H2O

Crystallography of ZirsinaliteHide

Crystal System:
Trigonal
Class (H-M):
3m(32/m) - Hexagonal Scalenohedral
Space Group:
R3m
Setting:
R3m
Cell Parameters:
a = 10.29(4) Å, c = 13.11(4) Å
Ratio:
a:c = 1 : 1.274
Unit Cell V:
1,202.16 ų (Calculated from Unit Cell)
Z:
3
Morphology:
rounded or irregular grains, to 1.5 cm

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0012464ZirsinalitePudovkina Z V, Chernitsova N M, Voronkov A A, Pyatenko Yu A (1980) Crystal structure of zirsinalite Na6Ca{Zr(Si6O18)} Doklady Akademii Nauk SSSR 250 865-8671980Koashva Mountain, Khibiny Massif, Kola Peninsula, Russia0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
1.842 Å(10)
2.637 Å(9)
2.569 Å(8)
3.26 Å(6)
4.22 Å(4)
3.68 Å(4)
3.33 Å(4)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of ZirsinaliteHide

General Appearance of Type Material:
Rounded or irregular deposits up to 1 x 1.5 cm.
Place of Conservation of Type Material:
A. E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia
Geological Setting of Type Material:
Pegmatitic veinlets cutting alkalic rocks
Associated Minerals at Type Locality:

Synonyms of ZirsinaliteHide

Other Language Names for ZirsinaliteHide

Relationship of Zirsinalite to other SpeciesHide

Other Members of Zirsinalite-Lovozerite Subgroup:
CombeiteNa4.5Ca3.5Si6O17.5(OH)0.5Trig. 3m(32/m) : R3m
KapustiniteNa6ZrSi6O16(OH)2Mon. 2/m : B2/m
KazakoviteNa6Mn2+Ti(Si6O18)Trig. 3m(32/m) : R3m
LitvinskiteNa2(◻,Na,Mn)ZrSi6O12(OH,O)6Mon. m : Bm
LovozeriteNa2Ca(Zr,Ti)(Si6O12)[(OH)4O2] · H2OTrig. 3 : R3
TisinaliteNa3H3(Mn,Ca,Fe)TiSi6(O,OH)18 · 2H2OTrig. 3m(32/m)
TownenditeNa8ZrSi6O18Trig. 3m(32/m) : R3m

Common AssociatesHide

Associations Based on Photo Data:
4 photos of Zirsinalite associated with AegirineNaFe3+Si2O6
3 photos of Zirsinalite associated with ThermonatriteNa2CO3 · H2O
2 photos of Zirsinalite associated with EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
2 photos of Zirsinalite associated with Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
1 photo of Zirsinalite associated with MicroclineK(AlSi3O8)

Related Minerals - Strunz-mindat GroupingHide

9.CJ.ZolotareviteNa5Zr[Si6O15(OH)3] · 3H2OTrig. 3m(32/m) : R3m
9.CJ.'Avdeevite'NaAl4(Be5Li)(Si6O18)2(H2O)1-2Hex. 6/mmm(6/m2/m2/m) : P63/mmc
9.CJ.'Beryllocordierite-Na'NaMg4(Al5Be)(AlSi5O18)2 · 2H2OOrth. mmm(2/m2/m2/m) : Cccm
9.CJ.SachanbińskiiteNaMn4(Al5Be)(AlSi5O18)2 · 2H2OOrth. mmm(2/m2/m2/m) : Cccm
9.CJ.NakkaalaaqiteK2[Na3Ca]LiCa2Ti2Be4Si12O38Orth. mmm(2/m2/m2/m) : Fddd
9.CJ.05Johnkoivulaite-(Cs)Cs[Be2B]Mg2Si6O18Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CJ.05BerylBe3Al2(Si6O18)Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CJ.05BazziteBe3Sc2(Si6O18)Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CJ.05Ferroindialite(Fe2+,Mg)2Al4Si5O18Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CJ.05 va'Vorobyevite'Be3Al2(Si6O18)
9.CJ.05StoppaniiteBe3Fe3+2(Si6O18) · H2OHex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CJ.05IndialiteMg2Al3(AlSi5O18)Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CJ.10SekaninaiteFe2+2Al4Si5O18Orth. mmm(2/m2/m2/m) : Cccm
9.CJ.10CordieriteMg2Al4Si5O18Orth. mmm(2/m2/m2/m) : Cccm
9.CJ.15aKapustiniteNa6ZrSi6O16(OH)2Mon. 2/m : B2/m
9.CJ.15aTownenditeNa8ZrSi6O18Trig. 3m(32/m) : R3m
9.CJ.15aCombeiteNa4.5Ca3.5Si6O17.5(OH)0.5Trig. 3m(32/m) : R3m
9.CJ.15aKazakoviteNa6Mn2+Ti(Si6O18)Trig. 3m(32/m) : R3m
9.CJ.15aTisinaliteNa3H3(Mn,Ca,Fe)TiSi6(O,OH)18 · 2H2OTrig. 3m(32/m)
9.CJ.15aLovozeriteNa2Ca(Zr,Ti)(Si6O12)[(OH)4O2] · H2OTrig. 3 : R3
9.CJ.15aLitvinskiteNa2(◻,Na,Mn)ZrSi6O12(OH,O)6Mon. m : Bm
9.CJ.15cKoashviteNa6(Ca,Mn)(Ti,Fe)Si6O18 · H2OOrth. mmm(2/m2/m2/m)
9.CJ.15bImandriteNa12Ca3Fe3+2(Si6O18)2Orth. mmm(2/m2/m2/m)
9.CJ.25BaratoviteKCa7(Ti,Zr)2Li3Si12O36F2Mon. 2/m : B2/b
9.CJ.25AleksandroviteKCa7Sn2Li3Si12O36F2Mon. 2/m : B2/b
9.CJ.25KatayamaliteKLi3Ca7Ti2(SiO3)12(OH)2Mon. 2/m : B2/b
9.CJ.30DioptaseCuSiO3 · H2OTrig. 3 : R3
9.CJ.35KostyleviteK2Zr(Si3O9) · H2OMon. 2/m : P21/b
9.CJ.40PetarasiteNa5Zr2(Si6O18)(Cl,OH) · 2H2OMon. 2/m : P21/m
9.CJ.45Gerenite-(Y)(Ca,Na)2(Y,REE)3Si6O18 · 2H2OTric. 1 : P1
9.CJ.50OdintsoviteK2Na4Ca3Ti2Be4Si12O38Orth. mmm(2/m2/m2/m) : Fddd
9.CJ.55MathewrogersitePb7FeAl3GeSi12O36(OH,H2O)6Trig.
9.CJ.60Pezzottaite-(Cs)Cs(Be2Li)Al2(Si6O18)Trig. 3 : R3

Other InformationHide

Thermal Behaviour:
DTA and TG curves show a small endothermal break at 300 C, corresponding with a loss of weight of 1 percent.
Melts at about 1000 C to a white enamel bead.
Notes:
Rapidly corroded in air with the formation of a powdery coating of sodium carbonate.

Slowly decomposed in cold dilute acids. Readily decomposed at 60-80° C by 10% HCl or H2SO4, with separation of gelatinous silica.

Slowly leached by cold water; finely ground material loses 1.71% Na in a few hours, 2.91% Na in a week; the residue gives the same X-ray pattern as the original. Hot water leaches 3.0% Na in 1 hour.
Special Storage/
Display Requirements:
Zirsinalite is unstable and will often form a crust of powdery or acicular sodium carbonate in storage.
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 ZirsinaliteHide

References for ZirsinaliteHide

Localities for ZirsinaliteHide

Showing 9 localities.

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.
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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.
Russia (TL)
 
  • Murmansk Oblast
    • Koashva Mt
[World of Stones 95:5-6 +2 other references
Pekov et al. (2004)
...
    • Lovozersky District
Pakhomovsky et al. (2014)
Pekov (1998)
      • Rasvumchorr Mine
Pavel M. Kartashov (n.d.)
Pekov I.V. et al. (2010)
Pekov (1998)
    • Yukspor Mountain
Khomyakov et al. (1983) +1 other reference
 
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