Zektzerite Mineral Data + 
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- 66.3.4.1 Tuhualite [](Na,K)FeFe[Si6O15] C mca 2/m 2/m 2/m
- 66.3.4.2 Zektzerite NaLiZrSi6O15 C mca 2/m 2/m 2/m
- 66.3.4.3 Emeleusite Na4Li2Fe2Si12O30 Pnna 2/m 2/m 2/m
- VIII/F.30-10 Zektzerite NaLiZrSi6O15 C mca 2/m 2/m 2/m
- VIII/F.30-20 Tuhualite [](Na,K)FeFe[Si6O15] C mca 2/m 2/m 2/m
- VIII/F.30-30 Pellyite Ba2Ca(Fe,Mg)2Si6O17 C mcm 2/m 2/m 2/m
General Zektzerite Information |
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 Chemical Formula: |
NaLiZrSi6O15 | ||
| Composition: |
Molecular Weight = 529.66 gm | ||
| Sodium 4.34 % Na 5.85 % Na2O | |||
| Lithium 1.31 % Li 2.82 % Li2O | |||
| Zirconium 17.22 % Zr 23.26 % ZrO2 | |||
| Silicon 31.82 % Si 68.06 % SiO2 | |||
| Oxygen 45.31 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
NaLiZrSi6O15 | ||
| Environment: |
In miarolitic cavities and isolated grains in alkaline syenite of the Golden Horn batholith. | ||
| IMA Status: |
Approved IMA 1977 | ||
| Locality: |
Washington Pass, Okanogan County, Washington, USA Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Jack Zektzer (1936-), mathematician and geologist of Seattle, Washington, USA. | ||
| Synonym: |
ICSD 100631 | ||
| PDF 29-835 | |||
Zektzerite Image | |||
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Images:
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Zektzerite Crystallography |
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| Axial Ratios: |
a:b:c =0.8257:1:0.5856 | ||
| Cell Dimensions: |
a = 14.33, b = 17.354, c = 10.164, Z = 8; V = 2,527.61 Den(Calc)= 2.78 | ||
| Crystal System: |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: C mca | ||
| X Ray Diffraction: |
By Intensity(I/Io): 4.85(1), 3.145(0.85), 7.19(0.78), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Zektzerite |
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| Cleavage: |
[100] Perfect, [010] Perfect | ||
| Color: |
Colorless, Pink. | ||
| Density: |
2.79 | ||
| Diaphaniety: |
Transparent | ||
| Hardness: |
6 - Orthoclase | ||
| Luminescence: |
Fluorescent, Short UV=light yellow. | ||
| Luster: |
Vitreous - Pearly | ||
| Streak: |
white | ||
Optical Properties of Zektzerite |
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| Gladstone-Dale: |
CI meas= 0.006 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.003 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2098,KPDmeas= 0.2091,KC= 0.2104 |
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| Optical Data: |
Biaxial (-), a=1.582, b=1.584, g=1.584, bire=0.0020, 2V(Calc)=0, 2V(Meas)=0. Dispersion r > v weak. | ||
| Pleochroism (x): |
colorless. | ||
| Pleochroism (y): |
colorless. | ||
| Pleochroism (z): |
colorless. | ||
Calculated Properties of Zektzerite |
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| Electron Density: |
relectron=2.71 gm/cc |
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| Fermion Index |
Fermion Index = 0.03538 Boson Index = 0.96462 |
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| Photoelectric: |
PEZektzerite = 24.04 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Zektzerite is Not Radioactive |
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Zektzerite Classification |
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| Dana Class: |
66.3.4.2 (66)Inosilicate Double-Width Unbranched Chains, W=2 | ||
| (66.3)with chains P>2 | |||
| (66.3.4)P=6 (Tahualite group) | |||
| Strunz Class: |
VIII/F.30-10 VIII - Silicates | ||
| VIII/F - Inosilicates (chain and band) Six chains [Si6O18]12- and six bands [Si12O30]12- | |||
| VIII/F.30 - Zektzerite - Pellyite series | |||
Other Zektzerite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Zektzerite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (MinSocAm) 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris Search for Zektzerite using: Visit our Advertisers for Zektzerite : Translate Zektzerite Mineral Data : Ask about Zektzerite here : Print or Cut-and-Paste your Zektzerite Specimen Label here :
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