Kogarkoite Mineral Data + Say KOGARKOITE


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General Kogarkoite Information

Help on Chemical  Formula: Chemical Formula: Na3(SO4)F
Help on Composition: Composition: Molecular Weight = 184.03 gm
   Sodium    37.48 %  Na   50.52 % Na2O
   Sulfur    17.42 %  S    43.51 % SO3
   Oxygen    34.78 %  O
   Fluorine  10.32 %  F    10.32 % F
               -   %  F    -4.35 % -O=F2
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na3(SO4)F
Help on Environment: Environment: Sublimate from steam issuing from the spring. Also in nepheline syenite pegmatites in Russia.
Help on IMA Status: IMA Status: Approved IMA 1973
Help on Locality: Locality: Hortense Hot Springs, Chalk Creek, Chaffee County, Colorado, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Lia Nikolaevna Kofarko (1936-), Russian geochemist, who first noticed the mineral in Russia.
Help on Synonym: Synonym: ICSD 31145
  PDF 25-827
 

Kogarkoite Image

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Kogarkoite

Comments: Pale green granular mass of kogarkoite with yellow native sulfur.
Location: Vulcano, Sicily, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kogarkoite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =2.6008:1:1.6462
Help on Cell Dimensions: Cell Dimensions: a = 18.073, b = 6.949, c = 11.44, Z = 12; beta = 107.71° V = 1,368.65 Den(Calc)= 2.68
Help on Crystal System: Crystal System: MonoclinicSpace Group: Unk (pseudo HEX-R)
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.48(1), 2.718(0.85), 2.991(0.85),
Click Here for Large Kogarkoite Structure Window Crystal Structure:

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Help on Above


Pabst A , Sharp W N , American Mineralogist , 58 (1973) p.116-127, Kogarkoite, a new natural phase in the system Na2SO4 - NaF - NaCl

View Additional jPOWD Structure files for Kogarkoite
[1]
 

Physical Properties of Kogarkoite

Help on Color: Color: Colorless, White, Light blue.
Help on Density: Density: 2.676 - 2.679, Average = 2.67
Help on Habit: Habit: Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite).
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Habit: Habit: Pseudo Hexagonal - Crystals show a hexagonal outline.
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luminescence: Luminescence: Fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Kogarkoite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.076 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.077 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1642,KPDmeas= 0.1643,KC= 0.1778
Help on Optical Data: Optical Data: Biaxial (+), a=1.439, b=1.439, g=1.442, bire=0.0030
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): colorless.
Help on Pleochroism (z): Pleochroism (z): colorless.
 

Calculated Properties of Kogarkoite

Help on Electron Density: Electron Density:

relectron=2.62 gm/cc
note: rKogarkoite =2.68 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00147
Boson Index = 0.99853
Help on Photoelectric: Photoelectric:

PEKogarkoite = 1.70 barns/electron
U=PEKogarkoite x relectron= 4.46 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Kogarkoite is Not Radioactive

 

Kogarkoite Classification

Help on  Dana Class: Dana Class: 30.1.6.1 (30)Anhydrous Sulfates Containing Hydroxyl or Halogen
  (30.1)where (A B)m (XO4)p Zq where m:p>2:1
  (30.1.6)Dana Group
 
30.1.6.1 Kogarkoite Na3(SO4)F Unk (pseudo HEX-R) Mono
Help on  Strunz Class: Strunz Class: VI/B.12-40 VI - Sulfates,Chromates,Molybdates and Tungstates
  VI/B - Waterfree sulfates [SO4]2- with unfamiliar anions. mostly big cations
  VI/B.12 - Sulphohalite - Caracolite series
 
VI/B.12-10 Sulphohalite Na6(SO4)2FCl F m3m 4/m 3 2/m
 
VI/B.12-20 Galeite Na15(SO4)5F4Cl P 3m 3m
 
VI/B.12-30 Schairerite Na21(SO4)7F6Cl P 31m 3m
 
VI/B.12-40 Kogarkoite Na3(SO4)F Unk (pseudo HEX-R) Mono
 
VI/B.12-50 Cesanite Na7Ca3(SO4)6(OH)·0.8(H2O) P 6 6
 
VI/B.12-60 Caracolite Na3Pb2(SO4)3Cl P 21/m 2/m
 

Other Kogarkoite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Kogarkoite :
1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 -Am. Min. Crystal Structure Database 4 -Athena 5 - EUROmin Project 6 -Google Images 7 -Google Scholar 8 -Handbook of Mineralogy (UofA) 9 -MinDAT 10 -MinMax(Deutsch) 11 -MinMax(English) 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 - WWW-MINCRYST 15 -École des Mines de Paris

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Kogarkoite

Na3(SO4)F
Dana No: 30.1.6.1 Strunz No: VI/B.12-40
Locality:

 

Notes:

 

 
   
 
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