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Chkalovite

A valid IMA mineral species - grandfathered

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Photos of Chkalovite (32)

Chkalovite Gallery Search Photos of Chkalovite

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Chkalovite, etc.

Pegmatite No. 60, Second Eastern Stream, Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia

Chkalovite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Chkalovite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Chkalovite, etc.

Pegmatite No. 60, Second Eastern Stream, Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia

Chkalovite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Chkalovite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Chkalovite, etc.

Pegmatite No. 60, Second Eastern Stream, Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia

Chkalovite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

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About ChkaloviteHide

Valery Pavlovich Chkalov

Formula:

Na₂BeSi₂O₆

Colour:

White

Lustre:

Vitreous

Hardness:

Specific Gravity:

2.662

Crystal System:

Orthorhombic

Name:

Named in 1939 by Vasilii Ivanovich Gerasimovsky in honor of Valery Pavlovich Chkalov (Валерий Павлович Чкалов) (20 January (2 February) 1904, Vasiljevo, Balakhninsky district, Nizhny Novgorod province, Russian empire - 15 December 1938, Moscow, USSR), Russian aviator and test pilot. He was the first pilot to make a non-stop flight from Moscow to the USA via the North Pole.

Type Locality:

ⓘ Malyi Punkaruaiv Mountain, Lovozersky District, Murmansk Oblast, Russia

This page provides mineralogical data about Chkalovite.

Unique IdentifiersHide

Mindat ID:

1007

Long-form identifier:

mindat:1:1:1007:4

GUID
(UUID V4):

0a7f6b54-62b8-4bf0-a8d4-3ea902ee3119

IMA Classification of ChkaloviteHide

IMA status:

Approved, 'Grandfathered' (first described prior to 1959)

First published:

1939

Classification of ChkaloviteHide

Strunz-mindat (2024):

9.DM.20

9 : SILICATES (Germanates)
D : Inosilicates
M : Inosilicates with 6-periodic single chains

Dana 8th ed.:

65.5.2.1

65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
5 : Single-Width Unbranched Chains, W=1 with chains P=6

Hey's CIM Ref.:

14.3.5

14 : Silicates not Containing Aluminum
3 : Silicates of Be

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
Ckl	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 ChkaloviteHide

Lustre:

Vitreous

Transparency:

Transparent, Translucent

Colour:

White

Streak:

White

Hardness:

6 on Mohs scale

Tenacity:

Brittle

Cleavage:

Imperfect/Fair
Fair in one direction, indistinct in two other directions

Fracture:

Irregular/Uneven, Conchoidal

Density:

2.662 g/cm³ (Measured) 2.70 g/cm³ (Calculated)

Optical Data of ChkaloviteHide

Type:

Biaxial (+)

RI values:

n_α = 1.544 n_β = 1.546 n_γ = 1.549

2V:

Measured: 78° , Calculated: 80°

Max Birefringence:

δ = 0.005

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Surface Relief:

Low

Dispersion:

noticable

Chemistry of ChkaloviteHide

Mindat Formula:

Na₂BeSi₂O₆

Elements listed:

Be, Na, O, Si - search for minerals with similar chemistry

Common Impurities:

Fe,Ca,K,S

Crystallography of ChkaloviteHide

Crystal System:

Orthorhombic

Class (H-M):

mm2 - Pyramidal

Space Group:

Fdd2

Cell Parameters:

a = 21.129 Å, b = 6.881 Å, c = 21.185 Å

Ratio:

a:b:c = 3.071 : 1 : 3.079

Unit Cell V:

3,080.06 Å³ (Calculated from Unit Cell)

Morphology:

Complex equant crystals, massive.

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)
0012436	Chkalovite	Pyatenko Y A, Bokii G B, Belov N V (1956) The X-ray analysis of the crystal structure of chkalovite Doklady Akademii Nauk SSSR 108 1077-1080		1956		0	293
0012452	Chkalovite	Simonov M A, Egorov-Tismenko Y K, Belov N V (1975) Utochnennaya kristallicheskaya struktura chkalovita Na2Be[Si2O6] Doklady Akademii Nauk SSSR 225 1319-1322		1975		0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Chkalovite'
loop_
_publ_author_name
'Pyatenko Y A'
'Bokii G B'
'Belov N V'
_journal_name_full 'Doklady Akademii Nauk SSSR'
_journal_volume 108 
_journal_year 1956
_journal_page_first 1077
_journal_page_last 1080
_publ_section_title
;
 The X-ray analysis of the crystal structure of chkalovite
;
_database_code_amcsd 0012436
_chemical_formula_sum 'Be Si2 Na2 O6'
_cell_length_a 21.1
_cell_length_b 21.1
_cell_length_c 6.87
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 3058.593
_exptl_crystal_density_diffrn      2.699
_symmetry_space_group_name_H-M 'F d d d'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2+y,1/2+z'
  '1/2+x,y,1/2+z'
  '1/2+x,1/2+y,z'
  '3/4+x,1/4-y,3/4+z'
  '3/4+x,3/4-y,1/4+z'
  '1/4+x,1/4-y,1/4+z'
  '1/4+x,3/4-y,3/4+z'
  '-x,y,-z'
  '-x,1/2+y,1/2-z'
  '1/2-x,y,1/2-z'
  '1/2-x,1/2+y,-z'
  '1/4-x,3/4+y,3/4+z'
  '1/4-x,1/4+y,1/4+z'
  '3/4-x,3/4+y,1/4+z'
  '3/4-x,1/4+y,3/4+z'
  'x,-y,-z'
  'x,1/2-y,1/2-z'
  '1/2+x,-y,1/2-z'
  '1/2+x,1/2-y,-z'
  '3/4+x,3/4+y,1/4-z'
  '3/4+x,1/4+y,3/4-z'
  '1/4+x,3/4+y,3/4-z'
  '1/4+x,1/4+y,1/4-z'
  '-x,-y,z'
  '-x,1/2-y,1/2+z'
  '1/2-x,-y,1/2+z'
  '1/2-x,1/2-y,z'
  '1/4-x,1/4-y,1/4-z'
  '1/4-x,3/4-y,3/4-z'
  '3/4-x,1/4-y,3/4-z'
  '3/4-x,3/4-y,1/4-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Be1   0.00000   0.00000   0.00000
Be2   0.00000   0.33000   0.00000
Si1   0.34600   0.00000   0.00000
Si2   0.07100   0.09300   0.25000
Na1   0.15400   0.00000   0.00000
Na2   0.07100   0.09300   0.75000
O1   0.12500   0.12500   0.12500
O2   0.04000   0.03000   0.16000
O3   0.03000   0.13000   0.37000
O4   0.13000   0.06000   0.37000
O5   0.20000   0.04000   0.66000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.97 Å	(very strong)
2.46 Å	(very strong)
2.41 Å	(very strong)
1.79 Å	(strong)
1.48 Å	(strong)
1.40 Å	(strong)
1.11 Å	(strong)

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 ChkaloviteHide

Type Locality:

ⓘ Malyi Punkaruaiv Mountain, Lovozersky District, Murmansk Oblast, Russia

General Appearance of Type Material:

Masses, with dimensions 5x4x3 cm and 7x4x3 cm.

Place of Conservation of Type Material:

Vernadsky State Geological Museum, Moscow, Russia, 18767.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 40001.

Geological Setting of Type Material:

In ussingite veinlets in a pegmatite in an alkalic massif.

Associated Minerals at Type Locality:

Sphalerite	Sodalite	Schizolite	Neptunite	Microcline
Eudialyte

Other Language Names for ChkaloviteHide

German:Chkalovit

Russian:Чкаловит

Simplified Chinese:硅铍钠石

Spanish:Chkalovita

Traditional Chinese:矽鈹鈉石

Common AssociatesHide

Associated Minerals Based on Photo Data:

98 photos of Chkalovite associated with Tugtupite	Na₄BeAlSi₄O₁₂Cl
45 photos of Chkalovite associated with Sodalite	Na₄(Si₃Al₃)O₁₂Cl
41 photos of Chkalovite associated with Analcime	Na(AlSi₂O₆) · H₂O
33 photos of Chkalovite associated with Ussingite	Na₂AlSi₃O₈OH
27 photos of Chkalovite associated with Arfvedsonite	[Na][Na₂][Fe²⁺₄Fe³⁺]Si₈O₂₂(OH)₂
20 photos of Chkalovite associated with Polylithionite	KLi₂Al(Si₄O₁₀)(F,OH)₂
14 photos of Chkalovite associated with Serandite	NaMn²⁺₂Si₃O₈(OH)
11 photos of Chkalovite associated with Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
10 photos of Chkalovite associated with Sphalerite	ZnS
9 photos of Chkalovite associated with Vuonnemite	Na₁₁Ti⁴⁺Nb₂(Si₂O₇)₂(PO₄)₂O₃(F,OH)

Related Minerals - Strunz-mindat Grouping Hide

9.DM.	Kesebolite-(Ce)	CeCa₂Mn(AsO₄)(SiO₃)₃	Mon. 2/m : P2₁/b
9.DM.05	Stokesite	CaSn[Si₃O₉] · 2H₂O	Orth. mmm (2/m 2/m 2/m) : Pnna
9.DM.10	Calciohilairite	CaZr[SiO₃]₃ · 3H₂O	Trig. 3 2 : R3 2
9.DM.10	Hilairite	Na₂Zr[SiO₃]₃ · 3H₂O	Trig. 3 2 : R3 2
9.DM.10	Komkovite	BaZr[Si₃O₉] · 3H₂O	Trig. 3 2 : R3 2
9.DM.10	Sazykinaite-(Y)	Na₅YZr[SiO₃]₆ · 6H₂O	Trig. 3 2 : R3 2
9.DM.10	Pyatenkoite-(Y)	Na₅YTi[SiO₃]₆ · 6H₂O	Trig. 3 2 : R3 2
9.DM.15	Gaidonnayite	Na₂Zr(Si₃O₉) · 2H₂O	Orth. mmm (2/m 2/m 2/m) : Pmna
9.DM.15	Georgechaoite	NaKZr[Si₃O₉] · 2H₂O	Orth. mm2
9.DM.15	Plumbogaidonnayite	PbZrSi₃O₉ · 2H₂O	Orth. mm2
9.DM.25	Vlasovite	Na₂ZrSi₄O₁₁	Mon. 2/m : B2/b
9.DM.30	Revdite	Na₁₆Si₁₆O₂₇(OH)₂₆ · 28H₂O	Mon. 2 : B2
9.DM.35	Scheuchzerite	Na(Mn,Mg,Zn)₉[VSi₉O₂₈(OH)](OH)₃	Tric. 1 : P1
9.DM.40	Hydroterskite	Na₂ZrSi₆O₁₂(OH)₆	Orth. mmm (2/m 2/m 2/m)
9.DM.40	Terskite	Na₄ZrSi₆O₁₆ · 2H₂O	Orth. mm2 : Pnc2

Other InformationHide

Notes:

Easily soluble in hydrochloric and nitric acids, soluble with difficulty in sulfuric acid. Before the blowpipe, fuses to a transparent colorless glass.

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 ChkaloviteHide

mindat.org URL:

https://www.mindat.org/min-1007.html
Please feel free to link to this page.

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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 ChkaloviteHide

Reference List:

Gerasimovskii, V.I. (1939) Chkalovite. Doklady Akademii Nauk SSSR: 22: 259-263.

(1940) New mineral names. American Mineralogist, 25 (5) 380

Pyatenko, Y.A., Bokii, G.B., Belov, N.V. (1956) The X-ray analysis of the crystal structure of chkalovite. Doklady Akademii Nauk SSSR: 108: 1077-1080. (in Russian).

Goryachev, A., Rogachev, D., Ignatev, O. (1962) Synthesis of Chkalovite. Doklady Akademii Nauk SSSR, 146(5), 1179.

Bauer, Y., Rykl, D. (1972) Synthetic Chkalovite. Kristallografiya, 17(3), 695.

Simonov, M. A., Egorov-Tismenko, Yu. K., Belov, N. V. (1975) Уточненная кристаллическая структура чкаловита Na2Be[Si2O6] [More precise defined of structure of chkalovite, Na2Be[Si2O6]]. Доклады Академии наук [Reports of the Academy of Sciences], 225 (6) 1319-1322

Khomyakov, A.P., Stepanov, V.I. (1979) The first find of chkalovite in Khibiny and its paragenesis. Doklady Akademii Nauk SSSR, 248, 727-730.

Kiseleva, I. A., Mel'chakova, L. V., Ogorodova, L. P., Topor, N. D., & Khomyakov, A. P. (1984). Thermodynamic properties of chkalovite Na2[BeSi2O6]. Vestnik Moskovskogo Universiteta, Seriya 2. Khimiya, 25(3), 276-281.

Henderson, C.M.B., Taylor, D. (1989) Structural behaviour of chkalovite, Na₂BeSi₂O₆: a member of the cristobalite family. Mineralogical Magazine, 53 (369) 117-119 doi:10.1180/minmag.1989.053.369.14

(2023) Chkalovite. Handbook of Mineralogy. Mineralogical Society of America

Localities for ChkaloviteHide

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
Québec Montérégie La Vallée-du-Richelieu RCM Mont Saint-Hilaire ⓘ Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH)	166-175. +2 other references

Greenland
Kujalleq ⓘ Ilímaussaq complex	Petersen (2001)
ⓘ Kangerluarsuk Fjord	Cran Cowan Specimen
ⓘ Qeqertaussaq Island	Otter (2023)
ⓘ Kuannersuit Plateau (Kvanefjeld)	Semenov et al. (1965) +2 other references
Kvanefjeld deposit ⓘ Kvanefjeld adit	Sørensen et al. (2001)
ⓘ Slope between Kvanefjeld Mt and Steenstrups Mt	Metcalf-Johansen (1977)
ⓘ Tugtupite-bearing albitites	Petersen et al. (2002)
Mount Nakkaalaaq ⓘ Ilimaussite occurrence	Semenov et al. (1968)
ⓘ Taseq Slope	Cole (2003)
Tunulliarfik Fjord ⓘ Igdlunguaq	Oen Ing Soen and Henning Sohensen (1964)
ⓘ Tugtup Agtakôrfia	Sørensen (1960) +1 other reference

Russia
Murmansk Oblast Khibiny Massif Koashva Mt ⓘ IGC Stop 2-2	Arzamastsev et al. (2008)
ⓘ Koashva Open Pit	[AmMin 87:181] +2 other references
Lovozersky District Alluaiv Mountain Umbozero mine ⓘ Shkatulka pegmatite	Lapis
ⓘ Karnasurt Mountain	Arzamastsev et al. (2008) +1 other reference
Karnasurt mine ⓘ Palitra pegmatite	Pekov et al. (2004)
Second Eastern Stream ⓘ Pegmatite No. 60	Pekov (1998)
ⓘ Yubileinaya pegmatite	Pekov (1998)
ⓘ Malyi Punkaruaiv Mountain (TL)	DAN-SSSR (1939) +2 other references
ⓘ Pegmatite No. 71	Ermolaeva et al. (2007) +1 other reference
Sengischorr Mountain Motchisuai River Valley ⓘ Pegmatite No. 66	Pekov (1998)

Chkalovite

About ChkaloviteHide

Unique IdentifiersHide

IMA Classification of ChkaloviteHide

Classification of ChkaloviteHide

Mineral SymbolsHide

Physical Properties of ChkaloviteHide

Optical Data of ChkaloviteHide

Chemistry of ChkaloviteHide

Crystallography of ChkaloviteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of ChkaloviteHide

Other Language Names for ChkaloviteHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

Internet Links for ChkaloviteHide

References for ChkaloviteHide

Localities for ChkaloviteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide