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About ZektzeriteHide

Colourless, pink (often zoned)
Crystal System:
Member of:
Named after Jack Zektzer (1936 - ), mineral collector of Seattle, Washington, USA, who presented the material for study.

Classification of ZektzeriteHide

Approval Year:

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

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

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

Physical Properties of ZektzeriteHide

Colourless, pink (often zoned)

Optical Data of ZektzeriteHide

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:
r < v moderate

Chemical Properties of ZektzeriteHide

IMA Formula:
Common Impurities:

Crystallography of ZektzeriteHide

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

Type Occurrence of ZektzeriteHide

Synonyms of ZektzeriteHide

Other Language Names for ZektzeriteHide

Simplified Chinese:硅锆钠锂石
Traditional Chinese:矽鋯鈉鋰石

Relationship of Zektzerite to other SpeciesHide

Member of:
Other Members of this group:

Common AssociatesHide

Associated Minerals Based on Photo Data:
13 photos of Zektzerite associated with Arfvedsonite[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
9 photos of Zektzerite associated with MicroclineK(AlSi3O8)
5 photos of Zektzerite associated with AlbiteNa(AlSi3O8)
4 photos of Zektzerite associated with AstrophylliteK2NaFe2+7Ti2Si8O26(OH)4F
4 photos of Zektzerite associated with Feldspar Group
3 photos of Zektzerite associated with BafertisiteBa2Fe2+4Ti2(Si2O7)2O2(OH)2F2
3 photos of Zektzerite associated with Riebeckite◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
2 photos of Zektzerite associated with HejtmaniteBa2(Mn2+,Fe2+)4Ti2(Si2O7)2O2(OH)2F2
1 photo of Zektzerite associated with Mica Group
1 photo of Zektzerite associated with SogdianiteK(□,Na)2Li3(Zr,Fe,Ti)2[Si12O30]

Related Minerals - Nickel-Strunz GroupingHide

9.DN.10Semenovite-(Ce)Na8Ca2FeBe6Ce2Si14O40(OH)4F4Orth. mmm (2/m 2/m 2/m)
9.DN.15Ashcroftine-(Y)K5Na5(Y,Ca)12Si28O70(OH)2(CO3)8 · 8H2OTet. 4/mmm (4/m 2/m 2/m) : I4/mmm

Related Minerals - Dana Grouping (8th Ed.)Hide

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

14.10.1ZirconZr(SiO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
14.10.2HafnonHfSiO4Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
14.10.5VlasoviteNa2ZrSi4O11Mon. 2/m : B2/b
14.10.6Keldyshite(Na,H)2ZrSi2O7Tric. 1 : P1
14.10.7GaidonnayiteNa2Zr(Si3O9) · 2H2OOrth. mmm (2/m 2/m 2/m) : Pmna
14.10.8TerskiteNa4ZrSi6O16 · 2H2OOrth.
14.10.9ElpiditeNa2ZrSi6O15 · 3H2OOrth.
14.10.10HilairiteNa2Zr[SiO3]3 · 3H2OTrig.
14.10.11PetarasiteNa5Zr2(Si6O18)(Cl,OH) · 2H2OMon. 2/m : P21/m
14.10.15KostyleviteK2Zr(Si3O9) · H2OMon.
14.10.16UmbiteK2(Zr,Ti)Si3O9 · H2OOrth.
14.10.17ParaumbiteK3Zr2H(Si3O9)2 · nH2OOrth.
14.10.18GeorgechaoiteNaKZr[Si3O9] · 2H2OOrth. mm2
14.10.20CalciocatapleiiteCaZr(Si3O9) · 2H2O
14.10.21CalciohilairiteCaZr[SiO3]3 · 3H2OTrig.
14.10.22ArmstrongiteCaZr[Si6O15] · 3H2OMon.
14.10.23Lemoynite(Na,K)2CaZr2Si10O26 · 5H2OMon. 2/m : B2/b
14.10.24CatapleiiteNa2Zr(Si3O9) · 2H2OMon.
14.10.26LovozeriteNa2Ca(Zr,Ti)(Si6O12)[(OH)4O2] · H2OMon.
14.10.27Låvenite(Na,Ca)2(Mn2+,Fe2+)(Zr,Ti)(Si2O7)(O,OH,F)2Mon. 2/m : P21/b
14.10.28PenkvilksiteNa4Ti2Si8O22 · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbcn
14.10.29DarapiositeK(Na,◻,K)2(Li,Zn,Fe)3(Mn,Zr,Y)2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
14.10.31KomkoviteBaZr[Si3O9] · 3H2OTrig.

Fluorescence of ZektzeriteHide

Fluoresces blue in SW UV

Other InformationHide

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 ZektzeriteHide

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 ZektzeriteHide

Localities for ZektzeriteHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Aisén
    • 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.
  • Lapland
    • 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.
  • Diana
    • Ambanja
      • Antsirabe
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.
  • Southern Region
    • Zomba
Guastoni, A., Pezzotta, F., & Zorzi, F. (2008). Neufunde aus Alkalipegmatiten am Mount Malosa, Malawi: Die weltbesten Zektzeritkristalle und interessante Pseudomorphosen. MINERALIEN MAGAZIN LAPIS, 33(3), 38.
  • Vestfold
    • Larvik
      • Stavern (Fredriksvärn)
        • Fuglevika
Kjærnet, T. (2018): Zektzeritt - mer utbredt i Larvik plutonkompleks enn man skulle tro ? Norsk Mineralsymposium 2018: 23-28
        • Jahren pegmatite (Jaren pegmatite)
Andresen, P., Friis, H., Kjærnet, T. & Larsen, A.O. (2018): The minerals of the Jahren pegmatite, one of the major pegmatites in the Larvik Plutonic Complex. Norsk Mineralsymposium 2018: 5-22; Kjærnet, T. (2018): Zektzeritt - mer utbredt i Larvik plutonkompleks enn man skulle tro ? Norsk Mineralsymposium 2018: 23-28.
Andresen, P., Friis, H., Kjærnet, T. & Larsen, A.O. (2018): The minerals of the Jahren pegmatite, one of the major pegmatites in the Larvik Plutonic Complex. Norsk Mineralsymposium 2018: 5-22.
Andresen, P., Friis, H., Kjærnet, T. & Larsen, A.o. (2018): The minerals of the Jahren pegmatite, one of the major pegmatites in the Larvik Plutonic Complex. Norsk Mineralsymposium 2018, 5-22.
    • 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
  • Districts of Republican Subordination
Pautov, L. A.; Ignatenko, K. I. (1992): Zektzerite - occurrence in Tadzhikistan. Mineralogicheskii Zhurnal 14, 75-78 (in Russian).; Can. Mineral. 42: 107-119 (2004)
  • 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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