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Khibinskite

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Formula:
K2ZrSi2O7
Hardness:
4½ - 5½
Crystal System:
Monoclinic
Name:
Named for the Khibiny alkaline massif, Kola Peninsula, Russia, which includes the type locality.
This page provides mineralogical data about Khibinskite.


Hide all sections | Show all sections

Classification of KhibinskiteHide

Approved
9.BC.10

9 : SILICATES (Germanates)
B : Sorosilicates
C : Si2O7 groups, without non-tetrahedral anions; cations in octahedral [6] and greater coordination
55.2.2.2

55 : SOROSILICATES Si2O7 Groups,Generally with no Additional Anions
2 : Si2O7 Groups, Generally with no Additional Anions with cations in [6] coordination
14.10.12

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

Physical Properties of KhibinskiteHide

Hardness:
4½ - 5½ on Mohs scale

Optical Data of KhibinskiteHide

Type:
Biaxial (-)
RI values:
nα = 1.665 nβ = 1.715 nγ = 1.715
2V:
Measured: 6° to 16°
Max Birefringence:
δ = 0.050
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
strong

Chemical Properties of KhibinskiteHide

Formula:
K2ZrSi2O7
Common Impurities:
Ti,Ca

Crystallography of KhibinskiteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 19.22 Å, b = 11.1 Å, c = 14.1 Å
β = 116.5°
Ratio:
a:b:c = 1.732 : 1 : 1.27
Unit Cell V:
2,692.07 ų (Calculated from Unit Cell)

Type Occurrence of KhibinskiteHide

Synonyms of KhibinskiteHide

Other Language Names for KhibinskiteHide

Related Minerals - Nickel-Strunz GroupingHide

9.BC.05GittinsiteCaZrSi2O7Mon.
9.BC.05Keiviite-(Y)Y2Si2O7Mon. 2/m : B2/m
9.BC.05Keiviite-(Yb)Yb2Si2O7Mon. 2/m : B2/m
9.BC.05ThortveititeSc2Si2O7Mon.
9.BC.05Yttrialite-(Y)(Y,Th)2Si2O7Mon. 2/m : P21/m
9.BC.10Keldyshite(Na,H)2ZrSi2O7Tric. 1 : P1
9.BC.10ParakeldyshiteNa2ZrSi2O7Tric.
9.BC.15RankiniteCa3Si2O7Mon. 2/m : P21/b
9.BC.20BarysilitePb8Mn2+[Si2O7]3Trig.
9.BC.25Edgarbaileyite(Hg-Hg)3Si2O7Mon.
9.BC.30KristianseniteCa2ScSn(Si2O7)(Si2O6OH)Tric. 1
9.BC.35Percleveite-(Ce)(Ce,La,Nd)2Si2O7Tet. 4

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

55.2.2.1Keldyshite(Na,H)2ZrSi2O7Tric. 1 : P1
55.2.2.3ParakeldyshiteNa2ZrSi2O7Tric.

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
14.10.3ZektzeriteLiNaZrSi6O15Orth.
14.10.4ParakeldyshiteNa2ZrSi2O7Tric.
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
14.10.13WadeiteK2Zr(Si3O9)Hex.
14.10.14DalyiteK2ZrSi6O15Tric.
14.10.15KostyleviteK2Zr(Si3O9) · H2OMon.
14.10.16UmbiteK2(Zr,Ti)Si3O9 · H2OOrth.
14.10.17ParaumbiteK3Zr2H(Si3O9)2 · nH2OOrth.
14.10.18GeorgechaoiteNaKZr[Si3O9] · 2H2OOrth. mm2
14.10.19GittinsiteCaZrSi2O7Mon.
14.10.20CalciocatapleiiteCaZr(Si3O9) · 2H2OOrth.
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.
14.10.25BaghdaditeCa3(Zr,Ti)(Si2O7)O2Mon.
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
14.10.29DarapiositeKNa2Mn2(Li2ZnSi12)O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
14.10.30BaziriteBaZr(Si3O9)Hex.
14.10.31KomkoviteBaZr[Si3O9] · 3H2OTrig.
14.10.32ZirsinaliteNa6(Ca,Mn2+,Fe2+)Zr(Si6O18)Trig.
14.10.33Tranquillityite(Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12Hex.

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 KhibinskiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Chernov, A.N., Maksimov, B.A., Ilyukhin, V.V., Belov, N.V. (1971) Crystalline structure of monoclinic modification of K,Zr-diorthosilicate (K2ZrSi2O7). Soviet Physics - Doklady: 15: 711-713.
Fleischer, M. (1974) New mineral names. American Mineralogist: 59: 1139-1141.
Khomyakov, A.P., Voronkov, A.A., Lebedeva, S.I., Bykov, V.P., Yurkiva, K.V. (1974) Khibinskite, K2ZrSi2O7, a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 103(1): 110-116.
Fleischer, M. (1975) New mineral names. American Mineralogist: 60: 340-341.
Nosyrev, N.A., Treushnikov, E.N., Voronkov, A.A., Ilyukhin, V.V., Ganiev, R.M., Belov, N.V. (1976) The crystal structure of synthetic khibinskite — K2ZrSi2O7(II). Doklady Akademii Nauk SSSR: 231: 1351-1353.
Soviet Physics – Doklady: 21: 696-697.

Internet Links for KhibinskiteHide

Localities for KhibinskiteHide

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.
Canada
 
  • Northwest Territories
Anton R. Chakhmouradian and Roger H. Mitchell (2001) Three compositional varieties of perovskite from kimberlites of the Lac de Gras Field (Northwest Territories, Canada). Mineralogical Magazine 65:133-148
Italy
 
  • Lazio
    • Rieti Province
      • Rieti
        • Santa Rufina
F. Stoppa and Y. Liu, Eur. J. Mineral. , 1995, 7, pp. 391-402.
  • Umbria
    • Perugia Province
      • Spoleto
Stoppa, F., & Schiazza, M. (2014). Extreme chemical conditions of crystallisation of Umbrian Melilitolites and wealth of rare, late stage/hydrothermal minerals. Central European Journal of Geosciences, 6(4), 549-564.
    • Terni Province
      • San Venanzo
Stoppa, F., Sharygin, V.V., and Cundari, A. (1997): Mineralogy and Petrology 61, 27-45.; Sharygin, V. V., Pekov, I. V., Zubkova, N. V., Khomyakov, A. P., Stoppa, F., & Pushcharovsky, D. Y. (2013). Umbrianite, K7Na2Ca2 [Al3Si10O29] F2Cl2, a new mineral species from melilitolite of the Pian di Celle volcano, Umbria, Italy. European Journal of Mineralogy, 25(4), 655-669.; Stoppa, F., & Schiazza, M. (2014). Extreme chemical conditions of crystallisation of Umbrian Melilitolites and wealth of rare, late stage/hydrothermal minerals. Central European Journal of Geosciences, 6(4), 549-564.
Russia
 
  • Murmansk Oblast
    • Khibiny Massif
[World of Stones 95:5-6, p64]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
South Africa
 
  • Free State
    • Thabo Mofutsanyane District
      • Clocolan
Kamenetsky, V. S., Belousova, E. A., Giuliani, A., Kamenetsky, M. B., Goemann, K., & Griffin, W. L. (2014). Chemical abrasion of zircon and ilmenite megacrysts in the Monastery kimberlite: Implications for the composition of kimberlite melts. Chemical Geology, 383, 76-85.
 
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