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Zektzerite

This page kindly sponsored by John Kashuba
Formula:
LiNaZrSi6O15
Colour:
Colourless, pink (often zoned)
Lustre:
Vitreous
Hardness:
6
Crystal System:
Orthorhombic
Member of:
Name:
Named after Jack Zektzer (1936 - ), mineral collector of Seattle, Washington, USA, who presented the material for study.

Classification of Zektzerite

Approved
Approval Year:
1976
9.DN.05

9 : SILICATES (Germanates)
D : Inosilicates
N : Inosilicates with 6-periodic double chains
66.3.4.2

66 : INOSILICATES Double-Width,Unbranched Chains,(W=2)
3 : Amphiboles - Ca-Na subgroup
14.10.3

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

Physical Properties of Zektzerite

Vitreous
Colour:
Colourless, pink (often zoned)
Hardness:

Optical Data of Zektzerite

Type:
Biaxial (-)
RI values:
nα = 1.582 nβ = 1.584 nγ = 1.584
Max Birefringence:
δ = 0.002
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v moderate

Chemical Properties of Zektzerite

Formula:
LiNaZrSi6O15
IMA Formula:
NaLiZrSi6O15
Common Impurities:
Ti,Hf

Crystallography of Zektzerite

Crystal System:
Orthorhombic
Cell Parameters:
a = 14.3 Å, b = 17.33 Å, c = 10.14 Å
Ratio:
a:b:c = 0.825 : 1 : 0.585
Unit Cell V:
2,512.88 ų (Calculated from Unit Cell)

Type Occurrence of Zektzerite

Synonyms of Zektzerite

Other Language Names for Zektzerite

German:Zektzerit
Simplified Chinese:硅锆钠锂石
Spanish:Zektzerita
Traditional Chinese:矽鋯鈉鋰石

Relationship of Zektzerite to other Species

Member of:
Other Members of this group:
EmeleusiteLi2Na4Fe2Si12O30
TuhualiteNaFe2+Fe3+Si6O15

Common Associates

Associated Minerals Based on Photo Data:
Arfvedsonite13 photos of Zektzerite associated with Arfvedsonite on mindat.org.
Microcline9 photos of Zektzerite associated with Microcline on mindat.org.
Albite5 photos of Zektzerite associated with Albite on mindat.org.
Astrophyllite4 photos of Zektzerite associated with Astrophyllite on mindat.org.
Feldspar Group4 photos of Zektzerite associated with Feldspar Group on mindat.org.
Bafertisite3 photos of Zektzerite associated with Bafertisite on mindat.org.
Riebeckite3 photos of Zektzerite associated with Riebeckite on mindat.org.
Hejtmanite2 photos of Zektzerite associated with Hejtmanite on mindat.org.
Mica Group1 photo of Zektzerite associated with Mica Group on mindat.org.
Sogdianite1 photo of Zektzerite associated with Sogdianite on mindat.org.

Related Minerals - Nickel-Strunz Grouping

9.DN.05EmeleusiteLi2Na4Fe2Si12O30
9.DN.05TuhualiteNaFe2+Fe3+Si6O15
9.DN.10Semenovite-(Ce)Na8Ca2FeBe6Ce2Si14O40(OH)4F4
9.DN.15Ashcroftine-(Y)K5Na5(Y,Ca)12Si28O70(OH)2(CO3)8 · 8H2O

Related Minerals - Hey's Chemical Index of Minerals Grouping

14.10.1ZirconZr(SiO4)
14.10.2HafnonHfSiO4
14.10.4ParakeldyshiteNa2ZrSi2O7
14.10.5VlasoviteNa2ZrSi4O11
14.10.6Keldyshite(Na,H)2ZrSi2O7
14.10.7GaidonnayiteNa2Zr(Si3O9) · 2H2O
14.10.8TerskiteNa4ZrSi6O16 · 2H2O
14.10.9ElpiditeNa2ZrSi6O15 · 3H2O
14.10.10HilairiteNa2Zr[SiO3]3 · 3H2O
14.10.11PetarasiteNa5Zr2(Si6O18)(Cl,OH) · 2H2O
14.10.12KhibinskiteK2ZrSi2O7
14.10.13WadeiteK2Zr(Si3O9)
14.10.14DalyiteK2ZrSi6O15
14.10.15KostyleviteK2Zr(Si3O9) · H2O
14.10.16UmbiteK2(Zr,Ti)Si3O9 · H2O
14.10.17ParaumbiteK3Zr2H(Si3O9)2 · nH2O
14.10.18GeorgechaoiteNaKZr[Si3O9] · 2H2O
14.10.19GittinsiteCaZrSi2O7
14.10.20CalciocatapleiiteCaZr(Si3O9) · 2H2O
14.10.21CalciohilairiteCaZr[SiO3]3 · 3H2O
14.10.22ArmstrongiteCaZr[Si6O15] · 3H2O
14.10.23Lemoynite(Na,K)2CaZr2Si10O26 · 5H2O
14.10.24CatapleiiteNa2Zr(Si3O9) · 2H2O
14.10.25BaghdaditeCa3(Zr,Ti)(Si2O7)O2
14.10.26LovozeriteNa2Ca(Zr,Ti)(Si6O12)[(OH)4O2] · H2O
14.10.27Låvenite(Na,Ca)2(Mn2+,Fe2+)(Zr,Ti)(Si2O7)(O,OH,F)2
14.10.28PenkvilksiteNa4Ti2Si8O22 · 4H2O
14.10.29DarapiositeK(Na,◻,K)2(Li,Zn,Fe)3(Mn,Zr,Y)2[Si12O30]
14.10.30BaziriteBaZr(Si3O9)
14.10.31KomkoviteBaZr[Si3O9] · 3H2O
14.10.32ZirsinaliteNa6(Ca,Mn2+,Fe2+)Zr(Si6O18)
14.10.33Tranquillityite(Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12

Related Minerals - Dana Grouping (8th Ed.)

66.3.4.1TuhualiteNaFe2+Fe3+Si6O15
66.3.4.3EmeleusiteLi2Na4Fe2Si12O30

Fluorescence of Zektzerite

Fluoresces blue in SW UV

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.

References for Zektzerite

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Dunn, P.J., R.C. Rouse, B. Cannon, and J.A. Nelen (1977) Zektzerite: a new
lithium sodium zirconium silicate related to tuhualite and the osumilite group. American Mineralogist 62, 416-420.
Ghose, S. and C. Wan (1978) Zektzerite, NaLiZrSi6O15: a silicate with six-tetrahedral-repeat double chains. American Mineralogist 63, 304-310.
Pautov, L. A.; Ignatenko, K. I. (1992) Zektzerite - occurrence in Tadzhikistan. Mineralogicheskii Zhurnal 14, 75-78 (in Russian).

Internet Links for Zektzerite

mindat.org URL:
https://www.mindat.org/min-4390.html
Please feel free to link to this page.
Specimens:
The following Zektzerite specimens are currently listed for sale on minfind.com.

Localities for Zektzerite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Chile
 
  • Aisén del General Carlos Ibáñez del Campo Region
    • Aisén Province (Aysén Province)
Welkner, Daniela; Godoy, Estanislao; Bernhardt, Heinz-J. (2002): Peralkaline rocks in the Late Cretaceous Del Salto Pluton, Eastern Patagonian Andes, Aisen, Chile (47° 35'S). Revista Geologica de Chile 29, 3-15.
Finland
 
  • Lapland Region
    • Savukoski
      • Tulppio
        • Sokli carbonatite complex
AL-Ani, Thair and Sarapää, Olli 2016. Abundance of REE bearing minerals in carbonatite and lambrophyre dikes in Kaulus area, Sokli carbonative complex, NE Finland. Geologian Tutkimuskeskus 7/2016.
Madagascar
 
  • Antsiranana Province
    • Diana Region (Northern Region)
      • Ambanja District
        • Ampasindava Peninsula
G. Estrade et al. (2011): HFSE enrichment in a peralkaline granite related skarn, Ampasindava Peninsula, Madagascar.- University of Toulouse, France; presentation given at the University of Tübingen.
Norway
 
  • Vestfold
    • Sandefjord
      • Haneholmveien
Larsen, K. E. & Kolitsch, U. (2012): An unique mineral suite in a syenite pegmatite at Virikkollen, Sandefjord, Larvik Plutonic Complex, Norway. Norsk Bergverksmuseum Skrifter. 49, 35-44
Tajikistan
 
  • Region of Republican Subordination
    • Tien Shan Mtn
      • Alai Range (Alayskiy)
Pautov, L. A.; Ignatenko, K. I. (1992): Zektzerite - occurrence in Tadzhikistan. Mineralogicheskii Zhurnal 14, 75-78 (in Russian).; Can. Mineral. 42: 107-119 (2004)
USA (TL)
 
  • Washington
    • Okanogan Co.
      • Golden Horn Batholith
[MinRec 9:253, 20:152]; Rocks and Minerals, 66:6, p. 457; American Mineralogist, V.73, p.1191-1194; Mineralogical Record 40:328
Mineral and/or Locality  
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