Galeite Mineral Data

Galeite Mineral Data
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General Galeite Information

Help on Chemical Formula: Chemical Formula: Na15(SO4)5F4Cl
Help on Composition: Composition: Molecular Weight = 936.61 gm
   Sodium    36.82 %  Na   49.63 % Na2O
   Sulfur    17.12 %  S    42.74 % SO3
   Chlorine   3.79 %  Cl    3.79 % Cl
               -   %   Cl   -0.85 % -O=Cl2   
   Oxygen    34.16 %  O
   Fluorine   8.11 %  F     8.11 % F
               -   %   F    -3.42 % -O=F2    
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na15(SO4)5F4Cl
Help on Environment: Environment: Continental evaporite deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1955
Help on Locality: Locality: Searles Lake, San Bernardino Co., California. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for William Alexander Gale (1898-1985), Director of Research of the American Potash and Chemical Corporation..
Help on Name Pronunciation: Name Pronunciation: Galeite Say GALEITE
Help on Synonym: Synonym: ICSD 4290
  PDF 15-651
 

Galeite Image

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Galeite

Comments: White translucent spherical crystalline aggregates of galeite in clay.
Location: Searles Lake, San Bernardino County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Galeite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:1.14413
Help on Cell Dimensions: Cell Dimensions: a = 12.197, c = 13.955, Z = 3; V = 1,797.90 Den(Calc)= 2.60
Help on Crystal System: Crystal System: Trigonal - Ditrigonal PyramidalH-M Symbol (3m) Space Group: P 3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.79(1), 3.52(0.8), 3.68(0.7),
Click Here for Large Galeite Structure Window Crystal Structure:

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Fanfani L , Nunzi A , Zanazzi P F , Zanzari A R , Mineralogical Magazine , 40 (1975) p.357-361, The crystal structure of galeite, Na15(SO4)5F4Cl, Locality: Searles Lake, California, USA

 

Physical Properties of Galeite

Help on Color: Color: Colorless, White.
Help on Density: Density: 2.605
Help on Streak: Streak: white
 

Optical Properties of Galeite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.074 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.072 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1723,KPDmeas= 0.172,KC= 0.1857
Ncalc = 1.48
Help on Optical Data: Optical Data: Uniaxial (+), w=1.447, e=1.449, bire=0.0020.
 

Calculated Properties of Galeite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.54 gm/cc
note: Specific Gravity of Galeite =2.60 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0014478471
Boson Index = 0.9985521529
Help on Photoelectric: Photoelectric: PEGaleite = 1.91 barns/electron
U=PEGaleite x rElectron Density= 4.85 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Galeite is Not Radioactive
 

Galeite Classification
Help on Dana Class: Dana Class: 30.01.08.01 (30)Anhydrous Sulfates Containing Hydroxyl or Halogen
  (30.01)where (A B)m (XO4)p Zq where m:p>2:1
  (30.01.08)Dana Group
 
30.01.08.01 Galeite Na15(SO4)5F4Cl P 3m 3m
Help on Strunz Class: Strunz Class: 07.BD.10 07 - SULFATES (SELENATES, TELLURATES)
  07.B - Sulfates (selenates, etc.) with Additional Anions, without H2O
  07.BD -With only large cations
 
07.BD.10 Galeite Na15(SO4)5F4Cl P 3m 3m
 
07.BD.10 Schairerite Na21(SO4)7F6Cl P 31m 3m
 

Other Galeite Information
Help on References: References: NAME( MinRec) 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 Galeite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Galeite

Na15(SO4)5F4Cl
Dana No: 30.01.08.01 Strunz No: 07.BD.10
Locality:

 

Notes: