Zirsinalite Mineral Data

General Zirsinalite Information

Chemical Formula:

Na6(Ca,Mn,Fe++)Zr[Si6O18]

Composition:

Molecular Weight = 733.35 gm

Sodium 18.81 % Na 25.35 % Na₂O

Calcium 2.73 % Ca 3.82 % CaO

Zirconium 12.44 % Zr 16.80 % ZrO₂

Manganese 2.25 % Mn 2.90 % MnO

Iron 1.52 % Fe 1.96 % FeO

Silicon 22.98 % Si 49.16 % SiO₂

Oxygen 39.27 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Na₆Ca_0.5Mn²⁺_0.3Fe²⁺_0.2ZrSi₆O₁₈

Environment:

Alteration product of lomonosovite and barian lamprophyllite found in a drill core.

IMA Status:

Approved IMA 1974

Locality:

Mt. Koashva, Khibiny massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for its composition (Zircon, Si, Na).

Name Pronunciation:

Zirsinalite + Pronunciation

Synonym:

ICSD 200800

PDF 27-670

Zirsinalite Image

Images:

Zirsinalite

Comments: Translucent pale olive-green-colored zirsinalite replacing reddish eudialyte.
Location: Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Zirsinalite Crystallography

Axial Ratios:

a:c = 1:1.27405

Cell Dimensions:

a = 10.29, c = 13.11, Z = 3; V = 1,202.17 Den(Calc)= 3.04

Crystal System:

Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: R 3m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 1.842(1), 2.637(0.9), 2.569(0.8),

Physical Properties of Zirsinalite

Cleavage:

None

Color:

Colorless, Pale yellow gray.

Density:

2.9

Diaphaneity:

Transparent

Fracture:

Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments.

Hardness:

5 - Apatite

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Zirsinalite

Gladstone-Dale:

CI meas= -0.03 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.017 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1998,KPDmeas= 0.2095,KC= 0.2033
Ncalc = 1.59 - 1.62

Optical Data:

Uniaxial (-), e=1.59-1.592, w=1.624, bire=0.0320-0.0340.

Calculated Properties of Zirsinalite

Electron Density:

Bulk Density (Electron Density)=2.96 gm/cc
note: Specific Gravity of Zirsinalite =3.04 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_Zirsinalite= 18.99 barns/electron
U=PE_Zirsinalite x rElectron Density= 56.17 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Zirsinalite is Not Radioactive

Zirsinalite Classification

Dana Class:

61.01.02a.04 (61)Cyclosilicate Six-Membered Rings

(61.01)with [Si6O18] rings; possible (OH) and Al substitution

(61.01.02a)Lovozerite group (HEX and HEX-R subgroup)

61.01.02a.01 Lovozerite H4Na2Ca(Zr,Ti)[Si6O18] R 3m 3 2/m

61.01.02a.02 Kazakovite Na6MnTiSi6O18 R 3m 3 2/m

61.01.02a.03 Tisinalite Na3H3(Mn,Ca,Fe)TiSi6(O,OH)18•2(H2O) R 3m 3 2/m

61.01.02a.04 Zirsinalite Na6(Ca,Mn,Fe)Zr[Si6O18] R 3m 3 2/m

61.01.02a.05 Combeite Na2Ca2Si3O9 P 3₂21,P 3₁21 3 2

61.01.02a.06 Kapustinite! Na5.5Mn0.25ZrSi6O16(OH)2 C 2/m 2/m

Strunz Class:

09.CJ.15 09 - SILICATES (Germanates)

09.C - Cyclosilicates

09.CJ -[Si6O18]12- 6-membered single rings (sechser-Einfachringe),

09.CJ.15 Combeite Na2Ca2Si3O9 P 3₂21,P 3₁21 3 2

09.CJ.15 Kazakovite Na6MnTiSi6O18 R 3m 3 2/m

09.CJ.15 Lovozerite H4Na2Ca(Zr,Ti)[Si6O18] R 3m 3 2/m

09.CJ.15 Zirsinalite Na6(Ca,Mn,Fe)Zr[Si6O18] R 3m 3 2/m

09.CJ.15 Kapustinite! Na5.5Mn0.25ZrSi6O16(OH)2 C 2/m 2/m

09.CJ.15 Tisinalite Na3H3(Mn,Ca,Fe)TiSi6(O,OH)18•2(H2O) R 3m 3 2/m

09.CJ.15 Litvinskite! Na2([],Na,Mn)Zr[Si6O12(OH,O)6] Cm m

Other Zirsinalite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Zirsinalite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Zirsinalite

Na6(Ca,Mn,Fe++)Zr[Si6O18]
Dana No: 61.01.02a.04 Strunz No: 09.CJ.15
Locality:

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