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Kogarkoite

A valid IMA mineral species
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About KogarkoiteHide

09655550016096140303669.jpg
Lia N. Kogarko
Formula:
Na3(SO4)F
Colour:
White, pale blue, pale pink
Lustre:
Vitreous, Dull
Hardness:
Specific Gravity:
2.66
Crystal System:
Monoclinic
Name:
Named in honor of Lia Nikolaevna Kogarko (Лия Николаевна Когарко) (b. 17 May 1936, Moscow, USSR), Russian geochemist at the Department of Earth Sciences, Russian Academy of Sciences (RAS). She first found the mineral, naming it 'chlorine-free schairerite'.
Has low solubility at high temperatures in the presence of water vapor.


Unique IdentifiersHide

Mindat ID:
2236
Long-form identifier:
mindat:1:1:2236:7
GUID
(UUID V4):
e2ca9e29-b7cc-49d9-b6e8-ed921264eca0

IMA Classification of KogarkoiteHide

Classification of KogarkoiteHide

7.BD.15

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
B : Sulfates (selenates, etc.) with additional anions, without H2O
D : With only large cations
30.1.6.1

30 : ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
1 : (AB)m(XO4)pZq, where m:p>2:1
26.1

26 : Sulphates with Halide

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
KogIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of KogarkoiteHide

Vitreous, Dull
Transparency:
Transparent, Translucent
Colour:
White, pale blue, pale pink
Streak:
White
Hardness:
3½ on Mohs scale
Density:
2.66(6) g/cm3 (Measured)    2.676 g/cm3 (Calculated)
Comment:
Calculated density from Fanfani et al. (1980).

Optical Data of KogarkoiteHide

Type:
Biaxial (+)
RI values:
nα = 1.439(1) nβ = 1.439(1) nγ = 1.442(1)
2V:
Measured: Nearly 0°
Birefringence:
0.0029(3), determined by Berek compensator on two synthetic crystals, 0.36 and 0.33 mm thick.
Max Birefringence:
δ = 0.003
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
dispersion not observed
Pleochroism:
Weak
Comments:
Very nearly uniaxial

Chemistry of KogarkoiteHide

Mindat Formula:
Na3(SO4)F

Crystallography of KogarkoiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/m
Setting:
P21/m
Cell Parameters:
a = 18.079(2) Å, b = 6.958(1) Å, c = 11.443(2) Å
β = 107.71°
Ratio:
a:b:c = 2.598 : 1 : 1.645
Unit Cell V:
1371.24 ų
Z:
12
Twinning:
Common, by rotation about [102] (or pseudohexagonal [0001]), giving intergrown and contact trillings.
Comment:
Cell parameters from Fanfani et al. (1980). Note that a=18.074 in abstract but 18.079 in body.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0000305KogarkoitePabst A, Sharp W N (1973) Kogarkoite, a new natural phase in the system Na2SO4 - NaF - NaCl American Mineralogist 58 116-12719730293
0014471KogarkoiteFanfani L, Giuseppetti G, Tadini C, Zanazzi P F (1980) The crystal structure of kogarkoite, Na3SO4F Mineralogical Magazine 43 753-7591980Mt Princeton, Colorado, USA0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.48 Å(100)
2.991 Å(85)
2.718 Å(85)
2.705 Å(85)
2.1419 Å(85)
3.80 Å(70)
2.564 Å(70)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 3b: Earth’s earliest hydrosphere>4.45
14 : Hot springs, geysers, and other subaerial geothermal minerals
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks
Stage 7: Great Oxidation Event<2.4
45a : [Sulfates, arsenates, selenates, antimonates]
45b : [Other oxidized fumarolic minerals]
Stage 10b: Anthropogenic minerals<10 Ka
55 : Anthropogenic mine minerals

Type Occurrence of KogarkoiteHide

General Appearance of Type Material:
Pale blue grains and aggregates occupying interstices between nepheline and feldspar.
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, 127420, 128029, 128030.
Geological Setting of Type Material:
In nepheline syenite pegmatite (at Lovozero).
Associated Minerals at Type Locality:
Reference:
Pabst, A., Sharp, W.N. (1973) Kogarkoite, a new natural phase in the system Na2SO4- NaF- NaCl. American Mineralogist: 58: 116-127.

Synonyms of KogarkoiteHide

Other Language Names for KogarkoiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Kogarkoite associated with VilliaumiteNaF
1 photo of Kogarkoite associated with ThermonatriteNa2CO3 · H2O

Related Minerals - Strunz-mindat GroupingHide

7.BD.AdanitePb2(Te4+O3)(SO4)Mon. 2/m : P21/b
7.BD.HasanoviteKNa(MoO2)(SO4)2Mon. 2/m : P21/b
7.BD.EvanichitePb6Cr3+(Cr6+O4)2(SO4)(OH)7FClTrig. 3 : P3
7.BD.Kennygayite[Pb4O2(OH)2](SO4)Tric. 1 : P1
7.BD.05SulphohaliteNa6(SO4)2FClIso. m3m (4/m 3 2/m) : Fm3m
7.BD.10GaleiteNa15(SO4)5F4ClTrig. 3m : P3 1m
7.BD.10SchaireriteNa21(SO4)7ClF6Trig. 3m : P3 1m
7.BD.20CaracoliteNa3Pb2(SO4)3ClMon. 2/m : P21/m
7.BD.20CesaniteNa3Ca2(SO4)3(OH)Hex. 6 : P6
7.BD.20AiolositeNa4Bi(SO4)3ClHex. 6/m : P63/m
7.BD.25BurkeiteNa6(CO3)(SO4)2Orth.
7.BD.30HanksiteNa22K(SO4)9(CO3)2ClHex. 6/m : P63/m
7.BD.35CannoniteBi2(SO4)O(OH)2Mon. 2/m : P21/b
7.BD.40LanarkitePb2(SO4)OMon. 2/m : B2/m
7.BD.45GrandreefitePb2(SO4)F2Mon. 2/m
7.BD.50ItoitePb3Ge4+(SO4)2O2(OH)2Orth. mmm (2/m 2/m 2/m) : Pnma
7.BD.55ChiluiteBi3Te6+Mo6+O10.5Hex.
7.BD.60HectorfloresiteNa9(SO4)4(IO3)Mon. 2/m : P21/b
7.BD.65PseudograndreefitePb6(SO4)F10Orth. 2 2 2 : F2 2 2
7.BD.70SundiusitePb10(SO4)O8Cl2Mon.

Fluorescence of KogarkoiteHide

Fluoresces cream to pale blue under SW UV and green under LW UV.

Other InformationHide

Thermal Behaviour:
Melting point 781 °C.
Notes:
Slowly soluble in H2O.
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 KogarkoiteHide

References for KogarkoiteHide

Reference List:

Localities for KogarkoiteHide

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
Horváth et al. (1990) +1 other reference
Costa Rica
 
  • Alajuela Province
    • Sarchí Canton
Rodríguez et al. (2017)
Ethiopia
 
  • Oromia Region
    • Hawasa
Žáček V et al. (2015)
Italy
 
  • Sicily
    • Metropolitan City of Messina
      • Eolie Islands (Aeolian Islands)
        • Lipari
Dr. A. Matthies Minerals
Japan
 
  • Fukushima Prefecture
    • Minamisōma City
Seki et al. (1987)
Kenya
 
  • Kajiado County
    • Mount Suswa (Suswa Volcano)
Forti et al. (2004)
Poland
 
  • Silesian Voivodeship
    • Wodzisław County
      • Radlin
Cu +2 other references
Russia
 
  • Buryatia
    • Baunt District
Solotchin et al. (2015, June)
  • Murmansk Oblast
    • Lovozersky District
Kogarko (1961) +2 other references
        • Umbozero mine
Khomyakov et al. (1992) +1 other reference
  • Sakha
    • Mirninsky District
      • Daldyn
Sharygin et al. (2008)
South Africa
 
  • Northern Cape
    • Frances Baard District Municipality
      • Sol Plaatje Local Municipality
        • Kimberley
          • KEM JV Mine (Kimberley Ekapa Mining Joint Venture mine; Kimberley Underground mine)
Giuliani et al. (2012)
Tanzania
 
  • Arusha region
    • Ngorongoro District
Nielsen (1999)
Mitchell (2006)
USA
 
  • Colorado
    • Chaffee County
      • Chalk Creek District
Bull. Soc. Franç. Minéralo. ...
Eckel et al. (1997)
  • New Mexico
    • Colfax County
      • Springer
        • Point of Rocks Mesa (Pecks Mesa)
Northrop et al. (1996)
Zambia
 
  • Southern Province
    • Choma District
Van Ranst et al. (2008)
 
Mineral and/or Locality  
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