Kupletskite-(Cs)
A valid IMA mineral species
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About Kupletskite-(Cs)
Formula:
Cs2NaMn2+7Ti2(Si4O12)2O2(OH)4F
Colour:
Golden brown
Lustre:
Dull
Hardness:
4
Specific Gravity:
3.68
Crystal System:
Triclinic
Member of:
Name:
Originally named cesium kupletskite in allusion to its composition, being the caesium-dominant analogue of kupletskite. Renamed to kupletskite-(Cs).
Unique Identifiers
Mindat ID:
6853
Long-form identifier:
mindat:1:1:6853:2
GUID
(UUID V4):
(UUID V4):
cd00da61-01c7-46fe-949d-76f0b66e08ff
IMA Classification of Kupletskite-(Cs)
Approved
IMA status notes:
Renamed by the IMA
First published:
1971
Approval history:
Renamed IMA04-A: From cesium kupletskite to kupletskite-(Cs), Bayliss (2007).
Classification of Kupletskite-(Cs)
9.DC.05
9 : SILICATES (Germanates)
D : Inosilicates
C : Inosilicates with branched 2-periodic single chains; Si2O6 + 2SiO3 Si4O12
9 : SILICATES (Germanates)
D : Inosilicates
C : Inosilicates with branched 2-periodic single chains; Si2O6 + 2SiO3 Si4O12
69.1.1.3
69 : INOSILICATES Chains with Side Branches or Loops
1 : Chains with Side Branches or Loops with (P=2, and N=4, 2 branches)
69 : INOSILICATES Chains with Side Branches or Loops
1 : Chains with Side Branches or Loops with (P=2, and N=4, 2 branches)
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Kpt-Cs | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Kupletskite-(Cs)
Dull
Transparency:
Translucent
Colour:
Golden brown
Hardness:
4 on Mohs scale
Hardness:
VHN100=186 - Vickers
Cleavage:
Perfect
{001}
{001}
Density:
3.68 g/cm3 (Measured) 3.609 g/cm3 (Calculated)
Comment:
Dcalc from from Cámara et al. (2010).
Optical Data of Kupletskite-(Cs)
Type:
Biaxial (+)
Dispersion:
r < v
Optical Extinction:
Z = a; Y ∧ b ≃ 10°.
Pleochroism:
Visible
Comments:
X = yellow-green; Y = yellow to brown; Z = brown.
Chemistry of Kupletskite-(Cs)
Mindat Formula:
Cs2NaMn2+7Ti2(Si4O12)2O2(OH)4F
Crystallography of Kupletskite-(Cs)
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 5.3850(3) Å, b = 11.9350(5) Å, c = 11.7793(6) Å
α = 113.117(1)°, β = 94.614(1)°, γ = 94.578(2)°
α = 113.117(1)°, β = 94.614(1)°, γ = 94.578(2)°
Ratio:
a:b:c = 0.451 : 1 : 0.987
Unit Cell V:
688.87 ų (Calculated from Unit Cell)
Z:
1
Comment:
Space groups and cell parameters from Cámara et al. (2010).
Crystal Structure
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Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0006310 | Kupletskite-(Cs) | Camara F, Sokolova E, Abdu Y, Hawthorne F C (2010) The crystal structures of niobophyllite, kupletskite-(Cs) and Sn-rich astrophyllite: Revisions to the crystal chemistry of the astrophyllite-group minerals The Canadian Mineralogist 48 1-16 | 2010 | Dara-i-Pioz glacier, Tien-Shan mountains, northern Tajikistan | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
10.4 Å | (100) |
3.54 Å | (80) |
2.79 Å | (80) |
2.66 Å | (80) |
2.58 Å | (60) |
1.772 Å | (40) |
4.09 Å | (30) |
Comments:
Dara-i-Pioz Massif, Tajikistan. The data are from the type description.
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 4b: Highly evolved igneous rocks | >3.0 |
35 : Ultra-alkali and agpaitic igneous rocks |
Type Occurrence of Kupletskite-(Cs)
General Appearance of Type Material:
Rosettelike intergrowths of curved platy crystals, forming aggregates, to 3 cm.
Place of Conservation of Type Material:
Mineralogical Museum, St. Petersburg University, St. Petersburg, 16537; A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 74170.
Geological Setting of Type Material:
At the border of aegirine-microcline-quartz pegmatites and in polylithionite-quartz replacement complexes in pegmatites of an alkaline massif.
Associated Minerals at Type Locality:
Reference:
Efimov, A.F., V.D. Dusmatov, A.A. Ganzeev, and Z.T. Kataeva (1971) Cesium kupletskite, a new mineral. Doklady Acad. Nauk SSSR, 197, 1394{1397 (in Russian)
Synonyms of Kupletskite-(Cs)
Other Language Names for Kupletskite-(Cs)
Relationship of Kupletskite-(Cs) to other Species
Member of:
Other Members of this group:
Kupletskite | (K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F | Tric. |
Laverovite | K2NaMn7Zr2(Si4O12)2O2(OH)4F | Tric. 1 : P1 |
Niobokupletskite | K2NaMn2+7(Nb,Ti)(Si4O12)2O2(OH)4(O,F) | Tric. 1 : P1 |
Forms a series with:
Common Associates
Associated Minerals Based on Photo Data:
3 photos of Kupletskite-(Cs) associated with Quartz | SiO2 |
2 photos of Kupletskite-(Cs) associated with Aegirine | NaFe3+Si2O6 |
2 photos of Kupletskite-(Cs) associated with Leucosphenite | BaNa4Ti2B2Si10O30 |
2 photos of Kupletskite-(Cs) associated with Microcline | K(AlSi3O8) |
1 photo of Kupletskite-(Cs) associated with Genthelvite | Be3Zn4(SiO4)3S |
1 photo of Kupletskite-(Cs) associated with Dusmatovite | K(K◻)Mn2+2Zn3[Si12O30] |
1 photo of Kupletskite-(Cs) associated with Betafite (of Hogarth 1977) | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
1 photo of Kupletskite-(Cs) associated with Manganese Oxides | |
1 photo of Kupletskite-(Cs) associated with Maleevite | BaB2Si2O8 |
1 photo of Kupletskite-(Cs) associated with Aegirine-augite | (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6 |
Related Minerals - Strunz-mindat Grouping
9.DC. | Bulgakite | Li2(Ca,Na)Fe2+7Ti2(Si4O12)2O2(OH)4(F,O)(H2O)2 |
9.DC.05 | Astrophyllite | K2NaFe2+7Ti2Si8O26(OH)4F |
9.DC.05 | Hydroastrophyllite | (H3O,K,Ca)3(Fe,Mn)5-65Ti2Si8(O,OH)31 |
9.DC.05 | Kupletskite | (K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F |
9.DC.05 | Lobanovite | K2Na(Fe2+4Mg2Na)Ti2(Si4O12)2O2(OH)4 |
9.DC.05 | Niobophyllite | (K,Na)3(Fe,Mn)6(Nb,Ti)2Si8(O,OH,F)31 |
9.DC.05 | Zircophyllite | K2NaFe2+7Zr2(Si4O12)2O2(OH)4F |
9.DC.05 | Niobokupletskite | K2NaMn2+7(Nb,Ti)(Si4O12)2O2(OH)4(O,F) |
9.DC.05 | Nalivkinite | Li2Na(Fe2+,Mn2+)7Ti2Si8O26(OH)4F |
9.DC.05 | Devitoite | [Ba6(PO4)2(CO3)][Fe2+7(OH)4Fe3+2O2(Si4O12)2] |
9.DC.05 | Sveinbergeite | Ca(Fe2+6Fe3+)Ti2(Si4O12)2O2(OH)5(H2O)4 |
9.DC.05 | Tarbagataite | (K◻)Ca(Fe2+,Mn)7Ti2(Si4O12)2O2(OH)5 |
9.DC.05 | Heyerdahlite | Na3Mn7Ti2(Si4O12)2O2(OH)4F(H2O)2 |
9.DC.05 | Laverovite | K2NaMn7Zr2(Si4O12)2O2(OH)4F |
Other Information
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 Kupletskite-(Cs)
mindat.org URL:
https://www.mindat.org/min-6853.html
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References for Kupletskite-(Cs)
Reference List:
Localities for Kupletskite-(Cs)
Locality List
- 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.
All localities listed without proper references should be considered as questionable.
Russia | |
| Агаханов А.А. et al. (2015) |
Tajikistan (TL) | |
| Pekov (1998) +2 other references |
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Dara-i-Pioz Massif, Districts of Republican Subordination, Tajikistan