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Chkalovite

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Valery Pavlovich Chkalov
Formula:
Na2BeSi2O6
System:
Orthorhombic
Colour:
White
Hardness:
6
Name:
Named in 1939 by Vasilii Ivanovich Gerasimovsky in honor of Valery Pavlovich Chkalov (1904-1938), Russian aviator.
This page provides mineralogical data about Chkalovite.

Classification of Chkalovite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
9.DM.20

9 : SILICATES (Germanates)
D : Inosilicates
M : Inosilicates with 6-periodic single chains
65.5.2.1

65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
5 : Single-Width Unbranched Chains, W=1 with chains P=6
14.3.5

14 : Silicates not Containing Aluminum
3 : Silicates of Be
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First Recorded Occurrence of Chkalovite

Year of Discovery:
1938
Geological Setting of First Recorded Material:
Pegmatite in alkalic massif

Physical Properties of Chkalovite

Vitreous
Diaphaneity (Transparency):
Transparent, Translucent
Colour:
White
Hardness (Mohs):
6
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)

Crystallography of Chkalovite

Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Space Group:
Fdd2
Cell Parameters:
a = 21.129Å, b = 6.881Å, c = 21.185Å
Ratio:
a:b:c = 3.071 : 1 : 3.079
Unit Cell Volume:
V 3,080.06 ų (Calculated from Unit Cell)
Z:
24
Morphology:
Complex equant crystals, massive

Optical Data of Chkalovite

Type:
Biaxial (+)
RI values:
nα = 1.544 nβ = 1.546 nγ = 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

Chemical Properties of Chkalovite

Formula:
Na2BeSi2O6
Essential elements:
All elements listed in formula:
Common Impurities:
Fe,Ca,K,S

Relationship of Chkalovite to other Species

9.DM.05StokesiteCaSn[Si3O9] · 2H2O
9.DM.10CalciohilairiteCaZr[SiO3]3 · 3H2O
9.DM.10HilairiteNa2Zr[SiO3]3 · 3H2O
9.DM.10KomkoviteBaZr[Si3O9] · 3H2O
9.DM.10Sazykinaite-(Y)Na5YZr[SiO3]6 · 6H2O
9.DM.10Pyatenkoite-(Y)Na5YTi[SiO3]6 · 6H2O
9.DM.15GaidonnayiteNa2Zr(Si3O9) · 2H2O
9.DM.15GeorgechaoiteNaKZr[Si3O9] · 2H2O
9.DM.25VlasoviteNa2ZrSi4O11
9.DM.30RevditeNa16Si16O27(OH)26 · 28H2O
9.DM.35ScheuchzeriteNa(Mn,Mg,Zn)9[VSi9O28(OH)](OH)3
9.DM.40TerskiteNa4ZrSi6O16 · 2H2O
14.3.1PhenakiteBe2SiO4
14.3.2BertranditeBe4(Si2O7)(OH)2
14.3.3BerylliteBe3(SiO4)(OH)2 · H2O
14.3.4LiberiteLi2BeSiO4
14.3.6EudidymiteNa2Be2Si6O15 · H2O
14.3.7EpididymiteNa2Be2Si6O15 · H2O
14.3.8GugiaiteCa2Be(Si2O7)
14.3.9Jeffreyite(Ca,Na)2(Be,Al)(Si2O7,HSi2O7)
14.3.10Semenovite-(Ce)Na8Ca2FeBe6Ce2Si14O40(OH)4F4
14.3.11BaryliteBe2Ba(Si2O7)
14.3.12Hingganite-(Ce)(Ce,REE)2(□,Fe2+)Be2[SiO4]2(OH)2
14.3.13Hingganite-(Yb)(Yb,Y,REE)2□Be2[SiO4]2(OH)2
14.3.14Hingganite-(Y)(Y,REE,Ca)2(□,Fe2+)Be2[SiO4]2(OH)2
14.3.15Minasgeraisite-(Y)CaBe2Y2Si2O10
14.3.16SørenseniteNa4SnBe2Si6O16(OH)4
14.3.17TrimeriteCaMn22+Be3(SiO4)3
14.3.18ChiavenniteCaMnBe2Si5O13(OH)2 · 2H2O
14.3.19Tvedalite(Ca,Mn)4Be3Si6O17(OH)4 · 3H2O
14.3.20HarstigiteCa6(Mn,Mg)Be4Si6(O,OH)24
14.3.21SverigeiteNaMnMgSnBe2(SiO4)3(OH)
14.3.22Joesmithite{Pb}{Ca2}{Mg3Fe23+}(Be2Si6O22)(OH)2
14.3.23Gadolinite-(Y)Y2Fe2+Be2Si2O10
14.3.24Gadolinite-(Ce)(Ce,La,Nd,Y)2Fe2+Be2Si2O10
14.3.25Calciogadolinite-(Y)(YCa)2Fe3+Be2[SiO4]2O2

Other Names for Chkalovite

Name in Other Languages:
German:Chkalovit
Simplified Chinese:硅铍钠石
Spanish:Chkalovita
Traditional Chinese:矽鈹鈉石

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 Chkalovite

Reference List:
American Mineralogist: 25: 380.

Soviet Physics – Doklady: 20: 805-807.

Internet Links for Chkalovite

Localities for Chkalovite

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.
Canada
 
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
Horváth, L and Gault, R.A. (1990), The mineralogy of Mont Saint-Hilaire Quebec. Mineralogical Record: 21: 284-359.
Greenland
 
  • Kujalleq
    • Narsaq
Petersen, O.V. (2001): List of all minerals identified in the Ilímaussaq alkaline complex, South Greenland. Geology of Greenland Survey Bulletin. 190, 25-33
Neues Jahrbuch Min. Monatsh. 1 (2002), 23-30; Friis, H., Balic-Zunic, T, Pekov, I., Peterson, O. (2004): Kuannersuite-(Ce), a new member of the Apatite-group, from the Ilimaussaq alkaline complex, South Greenland, Canadian Mineralogist, Vol. 42, 95-106
Cole, M. (2003): Fluorescent Minerals of the Ilimaussaq Complex, Greenland, MinerShop 2003
          • Kvanefjeld Uranium deposit
Henning Sørensen and Lotte Melchior Larsen (2001) The hyper-agpaitic stage in the evolution of the Ilímaussaq alkaline complex, South Greenland. Geology of Greenland Survey Bulletin 190, 83–94
Metcalf-Johansen, J. (1977): Willemite from the Ilimaussaq alkaline Intrusion. Mineralogical Magazine. 41, 71-75
Petersen, O.V., Giester, G., Brandstätter, F., Niedermayr, G. (2002): Nabesite, a new mineral species from the Ilimaussaq alkaline complex. Canadian Mineralogist. 40, 173-181
        • Taseq area
          • Nakalak Mt (Nakalaq; Nakkaalaaq)
Semenov, E.I., Kazakova, M.E., Bukin, V.J. (1968): Ilimaussite, a new rare earth – niobium – barium silicate, from Ilimaussaq, South Greenland, Medd. Groenland, Vol. 181 (7), 3-7
Cole, M. (2003): Fluorescent Minerals of the Ilimaussaq Complex, Greenland, MinerShop 2003
        • Tunulliarfik Fjord (Tunugdliarfik)
Sørensen, H. (1962): On the occurrence of Steenstrupine in the Ilimaussaq massif, Southwest Greenland. Meddelelser om Grønland. 167 (1), 1-251
Andersen, E.K., Danø, M., and Peteresen, O.V. (1969): A tetragonal natrolite. Contribution to the mineralogy of Ilímaussaq, No 13. Meddelelser om Grønland, 181, (10), 1-19.; Sørensen, H. (1960) Beryllium minerals in a pegmatite in the nepheline syenites of Ilímaussaq, South West Greenland. International Geological Congress, Report, 21st Session, Norden. Part 17, 31 35. Abstract: American Mineralogist, 46, 241.
Russia
 
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
        • Khibiny Massif
          • Koashva Mt
Arzamastsev, A., Yakovenchuk, V., Pakhomovsky, Y., & Ivanyuk, G. (2008). The Khibina and Lovozero alkaline massifs: Geology and unique mineralization. In Guidbook for 33rd International Geological Congress Excursion (No. 47, p. 58).
[AmMin 87:181]; American Mineralogist, Volume 94, pages 1450–1458, 2009
        • Lovozero Massif
          • Alluaiv Mt
            • Umbozero mine (Umbozerskii mine; Umba Mine)
Lapis, 4/97, Ivanjuk et al.
Arzamastsev, A., Yakovenchuk, V., Pakhomovsky, Y., & Ivanyuk, G. (2008). The Khibina and Lovozero alkaline massifs: Geology and unique mineralization. In Guidbook for 33rd International Geological Congress Excursion (No. 47, p. 58).
            • Second Eastern Stream
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
          • Kedykverpakhk Mt
I. V. Pekov, N. V. Chukanov, I. M. Kulikova, N. V. Zubkova, O. D. Krotova, N. I. Sorokina, D. Yu. Pushcharovsky: Proc. Russ. Min. Soc. 133(1):41-49 (2004)
DAN-SSSR,(1939) 22, 259-263; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Ermolaeva, V.N., Pekov, I.V., Chukanov, N.V., Zadov, A.E. (2007): Geology of Ore Deposits 49(8), 758-775.
          • Sengischorr Mt
            • Motchisuai River Valley
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Mineral and/or Locality  
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