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Kupletskite

A valid IMA mineral species - grandfathered
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About KupletskiteHide

08302020015611558122503.jpg
Elsa Kupletskaya and Boris Kupletski
Formula:
(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F
Colour:
Dark brown to black, brown, yellow
Lustre:
Adamantine, Vitreous
Hardness:
3 - 4
Specific Gravity:
3.20 - 3.36
Crystal System:
Triclinic
Name:
Named in honor of Boris Mikhailovich Kupletski (Борис Михайлович Куплетский) (10(22) January 1894, St. Petersburg, Russian Empire - 14 January 1964, Moscow, USSR), geologist and petrographer at the Institute of Geological Sciences of the USSR Academy of Sciences, and Elsa Maximilianovna Bohnshtedt Kupletskaya (Эльза Максимилиановна Бонштедт-Куплетская) (18(30) October 1897, St. Petersburg, Russian Empire - 10 July 1974, Moscow, USSR) mineralogist and professor at the Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry (IGEM) of the Academy of Sciences of the USSR. The mineral bonshtedtite is also named after Kupletskaya.
Kupletskite-Kupletskite-(Cs) Series. The potassium analogue of Kupletskite-(Cs). Alters easily to porous black manganese oxides.



Unique IdentifiersHide

Mindat ID:
2290
Long-form identifier:
mindat:1:1:2290:9
GUID
(UUID V4):
bf6f4bce-fb62-4b20-8117-780dd8f6a978

IMA Classification of KupletskiteHide

Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
K2NaMn2+7Ti2(Si4O12)2O2(OH)4F
First published:
1956

Classification of KupletskiteHide

9.DC.05

9 : SILICATES (Germanates)
D : Inosilicates
C : Inosilicates with branched 2-periodic single chains; Si2O6 + 2SiO3 Si4O12
69.1.1.2

69 : INOSILICATES Chains with Side Branches or Loops
1 : Chains with Side Branches or Loops with (P=2, and N=4, 2 branches)
14.9.28

14 : Silicates not Containing Aluminum
9 : Silicates of Ti

Mineral SymbolsHide

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

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference
KptIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
KptWarr (2020)Warr, L.N. (2020) Recommended abbreviations for the names of clay minerals and associated phases. Clay Minerals, 55, 261–264 doi:10.1180/clm.2020.30

Physical Properties of KupletskiteHide

Adamantine, Vitreous
Transparency:
Translucent
Colour:
Dark brown to black, brown, yellow
Comment:
dark brown to black when altered to manganese oxides.
Streak:
Brown
Hardness:
3 - 4 on Mohs scale
Cleavage:
Perfect
on [100]
Density:
3.20 - 3.36 g/cm3 (Measured)    3.05 g/cm3 (Calculated)

Optical Data of KupletskiteHide

Type:
Biaxial (-)
RI values:
nα = 1.656 - 1.660 nβ = 1.699 - 1.702 nγ = 1.731 - 1.734
2V:
Measured: 79° to 85°, Calculated: 78°
Max Birefringence:
δ = 0.075
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
relatively weak
Pleochroism:
Visible
Comments:
Pleochroic with Z brown to X orange-yellow.

Chemistry of KupletskiteHide

Mindat Formula:
(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F
Common Impurities:
Zr,Al,Mg,Ca,Ba,H2O

Crystallography of KupletskiteHide

Crystal System:
Triclinic
Cell Parameters:
a = 13.14 Å, b = 12.82 Å, c = 5.42 Å
α = 93.94°, β = 101.4°, γ = 113.38°
Ratio:
a:b:c = 1.025 : 1 : 0.423
Unit Cell V:
810.47 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Lamellar masses; fine plates; lamellar and acicular crystals
Comment:
Monoclinic, or triclinic, pseudomonoclinic. Point Group: n.d.; Space Group: n.d.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0005804KupletskitePiilonen P C, McDonald A M, Lalonde A E (2003) Insights into astrophyllite-group minerals II: Crystal chemistry The Canadian Mineralogist 41 27-542003Gjerdingen intrusion, Norway0293
0005807KupletskitePiilonen P C, McDonald A M, Lalonde A E (2003) Insights into astrophyllite-group minerals II: Crystal chemistry The Canadian Mineralogist 41 27-542003Lovozero massif, Kola Peninsula, Russia0293
0005808KupletskitePiilonen P C, McDonald A M, Lalonde A E (2003) Insights into astrophyllite-group minerals II: Crystal chemistry The Canadian Mineralogist 41 27-542003Lovozero massif, Kola Peninsula, Russia0293
0005810KupletskitePiilonen P C, McDonald A M, Lalonde A E (2003) Insights into astrophyllite-group minerals II: Crystal chemistry The Canadian Mineralogist 41 27-542003nepheline syenite pegmatite at Mont Saint-Hilaire, Quebec, Canada0293
0005811KupletskitePiilonen P C, McDonald A M, Lalonde A E (2003) Insights into astrophyllite-group minerals II: Crystal chemistry The Canadian Mineralogist 41 27-542003nepheline syenite pegmatite at Mont Saint-Hilaire, Quebec, Canada0293
0005812KupletskitePiilonen P C, McDonald A M, Lalonde A E (2003) Insights into astrophyllite-group minerals II: Crystal chemistry The Canadian Mineralogist 41 27-542003nepheline syenite pegmatite at Mont Saint-Hilaire, Quebec, Canada0293
0005813KupletskitePiilonen P C, McDonald A M, Lalonde A E (2003) Insights into astrophyllite-group minerals II: Crystal chemistry The Canadian Mineralogist 41 27-542003nepheline syenite pegmatite at Mont Saint-Hilaire, Quebec, Canada0293
0005814KupletskitePiilonen P C, McDonald A M, Lalonde A E (2003) Insights into astrophyllite-group minerals II: Crystal chemistry The Canadian Mineralogist 41 27-542003nepheline syenite pegmatite at Mont Saint-Hilaire, Quebec, Canada0293
0005815KupletskitePiilonen P C, McDonald A M, Lalonde A E (2003) Insights into astrophyllite-group minerals II: Crystal chemistry The Canadian Mineralogist 41 27-542003nepheline syenite pegmatite at Mont Saint-Hilaire, Quebec, Canada0293
0005816KupletskitePiilonen P C, McDonald A M, Lalonde A E (2003) Insights into astrophyllite-group minerals II: Crystal chemistry The Canadian Mineralogist 41 27-542003nepheline syenite pegmatite at Mont Saint-Hilaire, Quebec, Canada0293
0005817KupletskitePiilonen P C, McDonald A M, Lalonde A E (2003) Insights into astrophyllite-group minerals II: Crystal chemistry The Canadian Mineralogist 41 27-542003nepheline syenite pegmatite at Mont Saint-Hilaire, Quebec, Canada0293
0005820KupletskitePiilonen P C, McDonald A M, Lalonde A E (2003) Insights into astrophyllite-group minerals II: Crystal chemistry The Canadian Mineralogist 41 27-542003altered nepheline syenite pegmatite at Mont Saint-Hilaire, Quebec, Canada0293
0006907KupletskitePiilonen P C, McDonald A M, LaLonde A E (2001) Kupletskite polytypes from the Lovozero massif, Kola Peninsula, Russia: Kupletskite-1A and kupletskite-Ma2b2c European Journal of Mineralogy 13 973-9842001Lovozero massif, Kola Peninsula, Russia0293
0006908KupletskitePiilonen P C, McDonald A M, LaLonde A E (2001) Kupletskite polytypes from the Lovozero massif, Kola Peninsula, Russia: Kupletskite-1A and kupletskite-Ma2b2c European Journal of Mineralogy 13 973-9842001Lovozero massif, Kola Peninsula, Russia0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.505 Å(8)
2.642 Å(8)
2.573 Å(4)
2.099 Å(3)
1.732 Å(3)
3.249 Å(1)
2.998 Å(1)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of KupletskiteHide

General Appearance of Type Material:
In lamellar masses up to 5 X 3 X 1 cm, consisting of individual plates with perfect cleavage
Geological Setting of Type Material:
In natrolite central part of nepheline syenite pegmatites
Associated Minerals at Type Locality:
Reference:
Semenov, E.I. (1956) Kupletskite - a new mineral of the astrophyllite group. Doklady Akademii Nauk SSSR: 108: 933-936.

Other Language Names for KupletskiteHide

German:Kupletskit
Simplified Chinese:锰星叶石
Spanish:Kupletskita
Traditional Chinese:錳星葉石

Varieties of KupletskiteHide

Relationship of Kupletskite to other SpeciesHide

Other Members of this group:
Kupletskite-(Cs)Cs2NaMn2+7Ti2(Si4O12)2O2(OH)4FTric. 1 : P1
Laverovite K2NaMn7Zr2(Si4O12)2O2(OH)4FTric. 1 : P1
NiobokupletskiteK2NaMn2+7(Nb,Ti)(Si4O12)2O2(OH)4(O,F)Tric. 1 : P1
Forms a series with:

Common AssociatesHide

Associated Minerals Based on Photo Data:
54 photos of Kupletskite associated with AegirineNaFe3+Si2O6
26 photos of Kupletskite associated with AnalcimeNa(AlSi2O6) · H2O
15 photos of Kupletskite associated with NatroliteNa2Al2Si3O10 · 2H2O
14 photos of Kupletskite associated with CatapleiiteNa2Zr(Si3O9) · 2H2O
14 photos of Kupletskite associated with MicroclineK(AlSi3O8)
10 photos of Kupletskite associated with GenthelviteBe3Zn4(SiO4)3S
9 photos of Kupletskite associated with SeranditeNaMn2+2Si3O8(OH)
9 photos of Kupletskite associated with Monazite-(Ce)Ce(PO4)
9 photos of Kupletskite associated with AlbiteNa(AlSi3O8)
8 photos of Kupletskite associated with PectoliteNaCa2Si3O8(OH)

Related Minerals - Strunz-mindat GroupingHide

9.DC.BulgakiteLi2(Ca,Na)Fe2+7Ti2(Si4O12)2O2(OH)4(F,O)(H2O)2Tric. 1 : P1
9.DC.05AstrophylliteK2NaFe2+7Ti2Si8O26(OH)4FTric. 1 : P1
9.DC.05Hydroastrophyllite(H3O,K,Ca)3(Fe,Mn)5-65Ti2Si8(O,OH)31Tric.
9.DC.05LobanoviteK2Na(Fe2+4Mg2Na)Ti2(Si4O12)2O2(OH)4Mon. 2/m : B2/m
9.DC.05Niobophyllite(K,Na)3(Fe,Mn)6(Nb,Ti)2Si8(O,OH,F)31Tric.
9.DC.05ZircophylliteK2NaFe2+7Zr2(Si4O12)2O2(OH)4FTric.
9.DC.05Kupletskite-(Cs)Cs2NaMn2+7Ti2(Si4O12)2O2(OH)4FTric. 1 : P1
9.DC.05NiobokupletskiteK2NaMn2+7(Nb,Ti)(Si4O12)2O2(OH)4(O,F)Tric. 1 : P1
9.DC.05NalivkiniteLi2Na(Fe2+,Mn2+)7Ti2Si8O26(OH)4FTric. 1 : P1
9.DC.05Devitoite[Ba6(PO4)2(CO3)][Fe2+7(OH)4Fe3+2O2(Si4O12)2]Tric. 1 : P1
9.DC.05SveinbergeiteCa(Fe2+6Fe3+)Ti2(Si4O12)2O2(OH)5(H2O)4Tric. 1 : P1
9.DC.05Tarbagataite(K◻)Ca(Fe2+,Mn)7Ti2(Si4O12)2O2(OH)5 Tric. 1 : P1
9.DC.05HeyerdahliteNa3Mn7Ti2(Si4O12)2O2(OH)4F(H2O)2Tric. 1 : P1
9.DC.05Laverovite K2NaMn7Zr2(Si4O12)2O2(OH)4FTric. 1 : P1

Other InformationHide

Notes:
Melts easily before the blowpipe to a weakly magnetic dark
globule.
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 KupletskiteHide

References for KupletskiteHide

Localities for KupletskiteHide

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.
Brazil
 
  • Minas Gerais
    • Poços de Caldas
Atencio et al. (1999)
  • Rio de Janeiro
    • Itatiaia
Rosa et al. (2018)
Canada
 
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
166-175. +5 other references
China
 
  • Sichuan
    • Liangshan Yi
      • Huili County
Falu Liu and Jiahui Chen (1982)
Greenland
 
  • Kujalleq
    • Ilímaussaq complex
Christiansen et al. (1998)
  • Sermersooq
    • Kangerlussuaq Fjord
      • Amdrup Firth
Perchiazzi ( 2000)
Guinea
 
  • Conakry Region
Gerasimovskii et al. (Guinea) +8 other references
a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist (2) +1 other reference
Kazakhstan
 
  • Abai Region
    • Tarbagatai Range
      • Akzhaylyautas Mts (Akzhailyautas Mts; Akjaylautas Mts; Akzhalautas Mts)
Stepanov et al. (2012)
Malawi
 
  • Southern Region
    • Machinga
Bloomfield (1965) +5 other references
Morocco
 
  • Drâa-Tafilalet Region
    • Midelt Province
      • Midelt Cercle
        • Aït Oufella Caïdat
          • Amersid
Khadem Allah (1993)
Norway
 
  • Telemark
    • Porsgrunn
      • Siktesøya
Larsen et al. (2010)
  • Vestfold
    • Larvik
      • Hedrum
        • Lågendalen
Larsen et al. (2010)
Berge (n.d.)
        • Lysebo
Larsen et al. (2010)
  • Viken
    • Lunner
Raade (1981) +2 other references
    • Nittedal
Kvamsdal (2018)
Romania
 
  • Harghita County
Hirtopanu (2006)
Russia
 
  • Buryatia
    • Mama River Basin
      • Maigunda River
Pekov (1998) +1 other reference
  • Murmansk Oblast
    • Khibiny Massif
      • Kihlman Mountain
Pavel.M. Kartashov (n.d.)
PEKOV et al. (2013)
Pekov et al. (2004)
      • Yukspor Mt
Pavel.M. Kartashov (n.d.)
Neues Jahrbuch für Mineralogie (2003)
    • Lovozersky District
Pakhomovsky et al. (2014)
World of Stones: 95: 5-6: 64. +3 other references
      • Seidozero Lake
Pekov (2003)
Semenov E.I. (1972) +3 other references
  • Tuva
    • Sangilen Upland
Kapustin et al. (1965)
South Africa
 
  • North West
    • Bojanala Platinum District Municipality
      • Moses Kotane Local Municipality
Mitchell et al. (2004) +1 other reference
Tajikistan
 
  • Districts of Republican Subordination
Agakhanov et al. (2017)
Ukraine
 
  • Donetsk Oblast
    • Azov Sea Region
Sharygin (2015)
Pekov I.V. et al. (Priazovie) +1 other reference
        • Mazurovskoe Zr deposit
Pavel.M. Kartashov (n.d.)
USA
 
  • Arkansas
    • Hot Spring County
      • Magnet Cove
Smith (1988)
H. Barwood - unpublished (2010)
    • Pulaski County
      • Little Rock
Rocks and Minerals (1988) +1 other reference
Rocks and Minerals (1988) +2 other references
Ron Layton Collection
  • New Mexico
    • Colfax County
      • Springer
        • Point of Rocks Mesa (Pecks Mesa)
Rocks & Min.:60:229. +1 other reference
 
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