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Khibinskite

A valid IMA mineral species

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Formula:

K₂ZrSi₂O₇

Colour:

Pale yellowish to white

Lustre:

Greasy, Dull

Hardness:

4½ - 5½

Specific Gravity:

3.40

Crystal System:

Monoclinic

Name:

Named for the Khibiny alkaline massif, Kola Peninsula, Russia, which includes the type locality.

Type Locality:

ⓘ Hackman Valley, Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia

This page provides mineralogical data about Khibinskite.

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Unique IdentifiersHide

Mindat ID:

2198

Long-form identifier:

mindat:1:1:2198:8

GUID
(UUID V4):

1283eaa6-9a20-41d9-9c72-1648f9f17a5e

IMA Classification of KhibinskiteHide

IMA status:

Approved

Type description reference:

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.

Classification of KhibinskiteHide

Strunz-mindat (2023):

9.BC.10

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

Dana 8th ed.:

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

Hey's CIM Ref.:

14.10.12

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol	Source	Reference
Khi	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of KhibinskiteHide

Lustre:

Greasy, Dull

Transparency:

Translucent

Colour:

Pale yellowish to white

Hardness:

4½ - 5½ on Mohs scale

Density:

3.40 g/cm³ (Measured) 3.33 g/cm³ (Calculated)

Optical Data of KhibinskiteHide

Type:

Biaxial (-)

RI values:

n_α = 1.665 n_β = 1.715 n_γ = 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

Chemistry of KhibinskiteHide

Mindat Formula:

K₂ZrSi₂O₇

Elements listed:

K, O, Si, Zr - search for minerals with similar chemistry

Common Impurities:

Ti,Ca

Crystallography of KhibinskiteHide

Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Space Group:

B2/m

Setting:

B2/m

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 Å³ (Calculated from Unit Cell)

Comment:

On synthetic

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0015597	Khibinskite	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		1971	synthetic	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Khibinskite'
loop_
_publ_author_name
'Chernov A N'
'Maksimov B A'
'Ilyukhin V V'
'Belov N V'
_journal_name_full 'Soviet Physics Doklady'
_journal_volume 15 
_journal_year 1971
_journal_page_first 711
_journal_page_last 713
_publ_section_title
;
 Crystalline structure of monoclinic modification of K,Zr-diorthosilicate
 (K2ZrSi2O7)
;
_database_code_amcsd 0015597
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'K2 Zr Si2 O7'
_cell_length_a 9.54
_cell_length_b 14.26
_cell_length_c 5.60
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 116.517
_cell_volume 681.684
_exptl_crystal_density_diffrn      3.289
_symmetry_space_group_name_H-M 'P 1 1 21/b'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2+y,1/2-z'
  '-x,1/2-y,1/2+z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
K1   0.03500   0.42600   0.26400
K2   0.48200   0.59200   0.26000
Zr   0.23700   0.23200   0.25300
Si1   0.17200   0.36900   0.74400
Si2   0.33600   0.11400   0.74100
O1   0.00400   0.62900   0.26400
O2   0.30900   0.49200   0.79500
O3   0.47600   0.31600   0.23200
O4   0.21700   0.34200   0.46400
O5   0.18500   0.29600   0.93500
O6   0.24500   0.11100   0.00700
O7   0.26500   0.14800   0.54000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
2.76 Å	(100)
2.95 Å	(70)
1.630 Å	(65)
2.133 Å	(50)
1.381 Å	(50)
1.252 Å	(45)
1.595 Å	(40)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 4b: Highly evolved igneous rocks	>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of KhibinskiteHide

Type Locality:

ⓘ Hackman Valley, Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia

General Appearance of Type Material:

As irregular grains, to 3 mm

Place of Conservation of Type Material:

Geology Museum, Kola Branch, Academy of Sciences, Apatity, 5089; Mining Institute, St. Petersburg, 1078/1; Institute of Mineralogy and Geochemistry of Rare Elements, Moscow; A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 76326{76328; National School of Mines, Paris, France; The Natural History Museum, London, England, 1994,11.

Geological Setting of Type Material:

In aegirine-rich metasomatic rocks in a differentiated alkalic massif

Associated Minerals at Type Locality:

Eudialyte

Zircon

Reference:

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.

Synonyms of KhibinskiteHide

IMA1973-014

Other Language Names for KhibinskiteHide

German:Khibinskit

Russian:Хибинскит

Spanish:Khibinskita

Related Minerals - Strunz-mindat Grouping Hide

9.BC.	Kozłowskiite	Ca₄Fe²⁺₂Sn₃(Si₂O₇)₂(Si₂O₆OH)₂	Tric. 1
9.BC.	Anorthoyttrialite-(Y)	Y₄(SiO₄)(Si₃O₁₀)	Tric. 1 : P1
9.BC.05	Gittinsite	CaZrSi₂O₇	Mon. 2 : B2
9.BC.05	Keiviite-(Y)	Y₂Si₂O₇	Mon. 2/m : B2/m
9.BC.05	Keiviite-(Yb)	Yb₂Si₂O₇	Mon. 2/m : B2/m
9.BC.05	Thortveitite	Sc₂Si₂O₇	Mon. 2/m : B2/m
9.BC.05	Yttrialite-(Y)	(Y,Th)₂Si₂O₇	Mon. 2/m : P2₁/m
9.BC.10	Keldyshite	(Na,H)₂ZrSi₂O₇	Tric. 1 : P1
9.BC.10	Parakeldyshite	Na₂ZrSi₂O₇	Tric. 1 : P1
9.BC.15	Rankinite	Ca₃Si₂O₇	Mon. 2/m : P2₁/b
9.BC.20	Barysilite	Pb₈Mn²⁺[Si₂O₇]₃	Trig. 3m (3 2/m) : R3c
9.BC.25	Edgarbaileyite	[Hg₂]²⁺₃[Si₂O₇]	Mon.
9.BC.30	Kristiansenite	Ca₄Sc₂Sn₂(Si₂O₇)₂(Si₂O₆OH)₂	Tric. 1
9.BC.30	Silesiaite	Ca₄Fe³⁺₂Sn₂(Si₂O₇)₂(Si₂O₆OH)₂	Tric. 1
9.BC.35	Percleveite-(Ce)	Ce₂Si₂O₇	Tet. 4 : P4₁
9.BC.35	Percleveite-(La)	La₂Si₂O₇	Tet. 4 : P4₁
9.BC.40	Scottyite	BaCu₂Si₂O₇	Orth. mmm (2/m 2/m 2/m) : Pmna

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.

Internet Links for KhibinskiteHide

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https://www.mindat.org/min-2198.html
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External Links:

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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References for KhibinskiteHide

Reference List:

Soviet Physics – Doklady: 21: 696-697.

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, Michael (1975) New mineral names. American Mineralogist, 60 (3-4) 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.

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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.


Canada
Northwest Territories ⓘ Lac de Gras	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 ⓘ Cupaello Quarry	F. Stoppa and Y. Liu, Eur. J. Mineral. , 1995, 7, pp. 391-402. Sabatini, V. (1903). La pirossenite melilitica di Coppaeli. Boll. R. Com. geol. Ital., 34, 376. Cundari, A., & Ferguson, A. K. (1991). Petrogenetic relationships between melilitite and lamproite. Contributions to Mineralogy and Petrology, 107(3), 343-357. Villa, I., Serva, L., & Quercioli, C. (1991). Verso una datazione della lava di Cupaello (Rieti). Plinius, 4, 102-103. Stoppa, F., & Cundari, A. (1995). A new Italian carbonatite occurrence at Cupaello (Rieti) and its genetic significance. Contributions to Mineralogy and Petrology, 122(3), 275-288. Conticelli, S., D’antonio, M., Pinarelli, L., & Civetta, L. (2002). Source contamination and mantle heterogeneity in the genesis of Italian potassic and ultrapotassic volcanic rocks: Sr–Nd–Pb isotope data from Roman Province and Southern Tuscany. Mineralogy and Petrology, 74(2-4), 189-222. Isakova, A. T., Panina, L. I., & Stoppa, F. (2017). Genesis of kalsilite melilitite at Cupaello, Central Italy: Evidence from melt inclusions. Petrology, 25(4), 433-447.
Umbria Perugia Province Spoleto ⓘ Colle Fabbri	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 ⓘ Vispi Quarry (incl. Celli; Pian di Celle volcano)	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 ⓘ Yukspor Mt
ⓘ Hackman Valley (TL)	World of Stones 95:5-6, p64 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, Michael (1975) New mineral names. American Mineralogist, 60 (3-4) 340-341* *Pekov, Igor V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures, Moscow. 369pp.*

South Africa
Free State Thabo Mofutsanyane District Municipality Setsoto Local Municipality Clocolan ⓘ Monastery Mine	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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