Chkalovite Mineral Data

Chkalovite Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images Share
      News Help About


General Chkalovite Information

Help on Chemical Formula: Chemical Formula: Na2BeSi2O6
Help on Composition: Composition: Molecular Weight = 207.16 gm
   Sodium     22.20 %  Na   29.92 % Na2O
   Beryllium   4.35 %  Be   12.07 % BeO
   Silicon    27.11 %  Si   58.01 % SiO2
   Oxygen     46.34 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na2Be(Si2O6)
Help on Environment: Environment: In veins in pegmatite in a differentiated alkalic massif.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1939
Help on Locality: Locality: Mt. Punkaruaiv, Lovozero massif, and in the Khibiny massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Valerii Pavlovich Chkalov (1904{1938), the first to fly nonstop from Moscow to the USA across the North Pole.
Help on Synonym: Synonym: ICSD 34075
  PDF 42-572
 

Chkalovite Image

Click Here for Larger Chkalovite Image in a New Browser Window Images:
Click Here for Larger Chkalovite Image

Chkalovite

Comments: Massive, white chkalovite associated with dark aegerine.
Location: Ilimaussaq, Tasseq, Greenland. Scale: 4.5 x 3 cm.
© John Veevaert

Chkalovite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1:1:0.3255
Help on Cell Dimensions: Cell Dimensions: a = 21.1, b = 21.1, c = 6.87, Z = 24; V = 3,058.59 Den(Calc)= 2.70
Help on Crystal System: Crystal System: Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: F dd2
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.48(1), 4.02(1), 2.76(0.9),
Click Here for Large Chkalovite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
 Help on Above


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

View Additional jPOWD Structure files for Chkalovite
[1]
 

Physical Properties of Chkalovite

Help on Cleavage: Cleavage: {100} Fair, {0kl} Indistinct
Help on Color: Color: Colorless, White.
Help on Density: Density: 2.662
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Equant Grains - Granular material with equel dimensions in x, y, and z.
Help on Hardness: Hardness: 6 - Orthoclase
Help on Luster: Luster: Vitreous - Greasy
Help on Streak: Streak: white
 

Optical Properties of Chkalovite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.006 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.02 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2023,KPDmeas= 0.2052,KC= 0.2065
Ncalc = 1.55 - 1.56
Help on Optical Data: Optical Data: Biaxial (+), a=1.544, b=1.546, g=1.549, bire=0.0050, 2V(Calc)=80, 2V(Meas)=78.
 

Calculated Properties of Chkalovite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.62 gm/cc
note: Specific Gravity of Chkalovite =2.66 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.05
Boson Index = 0.95
Help on Photoelectric: Photoelectric: PEChkalovite = 1.43 barns/electron
U=PEChkalovite x rElectron Density= 3.75 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Chkalovite is Not Radioactive
 

Chkalovite Classification
Help on Dana Class: Dana Class: 65.05.02.01 (65)Inosilicate Single-Width Unbranched Chains, W=1
  (65.05)with chains P=6
  (65.05.02)Dana Group
 
65.05.02.01 Chkalovite Na2BeSi2O6 F dd2 mm2
Help on Strunz Class: Strunz Class: 09.DM.20 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DM -Inosilicates with 6-periodic single chains
 
09.DM.20 Chkalovite Na2BeSi2O6 F dd2 mm2
 

Other Chkalovite Information
Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Chkalovite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Amethyst Galleries' Mineral Gallery
5 - Athena
6 - EUROmin Project
7 - Ecole des Mines de Paris
8 - GeoScienceWorld
9 - Google Images
10 - Google Scholar
11 - Handbook of Mineralogy (MinSocAm)
12 - Handbook of Mineralogy (UofA)
13 - MinDAT
14 - Mineralienatlas (Deutsch)
15 - Online Mineral Museum
16 - QUT Mineral Atlas
17 - Ruff.Info
18 - WWW-MINCRYST

Search for Chkalovite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Chkalovite :

A Bijoux Google Search for Chkalovite
Adam's Minerals Google Search for Chkalovite
Cape Minerals Google Search for Chkalovite
Dakota Matrix Minerals Google Search for Chkalovite
Excalibur Mineral Corp. Google Search for Chkalovite
Exceptional Minerals Google Search for Chkalovite
John Betts Fine Minerals Search for Chkalovite
McDougall Minerals Google Search for Chkalovite
Mineral News Website Link
Rock and Mineral Shows Google Search for Chkalovite
Weinrich Minerals, Inc. Google Search for Chkalovite

Ask about Chkalovite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaņol

Print or Cut-and-Paste your Chkalovite Specimen Label here :

Chkalovite

Na2BeSi2O6
Dana No: 65.05.02.01 Strunz No: 09.DM.20
Locality:

 

Notes: