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Lemmleinite-K

A valid IMA mineral species
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09713940017271928738917.jpg
Lemmleinite-K

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia
01052570017490147209621.jpg
Lemmleinite-K, etc.

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia
00031380017271928828558.jpg
Lemmleinite-K

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia
09713940017271928738917.jpg
Lemmleinite-K

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia
03216580017415081797493.jpg
Lemmleinite-K, etc.

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia
00031380017271928828558.jpg
Lemmleinite-K

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia
09098870017271928851892.jpg
Lemmleinite-K

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia
01052570017490147209621.jpg
Lemmleinite-K, etc.

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia
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About Lemmleinite-KHide

05069940017271928886940.jpg
Georgy Glebovich Lemmlein (1901-1962)
Formula:
K2(Ti,Nb)2(Si4O12)(OH,O)2 · 4H2O
Colour:
Colourless
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
2.80
Crystal System:
Orthorhombic
Name:
Originally named lemmleinite (without suffix) in honor of Georgy Glebovich Lemmlein (Георгий Глебович Леммлейн) (1901-1962), Russian mineralogist and crystallographer. The suffix was added in 2002 to fit the recommended nomenclature for labuntsovite-group minerals.
This page provides mineralogical data about Lemmleinite-K.


Unique IdentifiersHide

Mindat ID:
7048
Long-form identifier:
mindat:1:1:7048:1

IMA Classification of Lemmleinite-KHide

IMA status:
Approved
IMA status notes:
Renamed by the IMA
IMA Formula:
Na4K8Ti8(Si4O12)4(OH,O)8 · 8H2O
First published:
1999
Approval history:
Renamed 2000 (IMA00-A).
Type description reference:
Khomyakov, A.P., Nechelyustov, G.N., Rastsvetaeva, R.K., Dorokhova, G.I. (1999) Lemmleinite, NaK2(Ti,Nb)2Si4O12(O,OH)2·2H2O - a new mineral of the labuntsovite-nenadkevichite family. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva: 128(5): 54-62.

Classification of Lemmleinite-KHide

Strunz-mindat (2025):
9.CE.30d

9 : SILICATES (Germanates)
C : Cyclosilicates
E : [Si4O12]8- 4-membered single rings (vierer-Einfachringe), without insular complex anions

Mineral SymbolsHide

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

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

Physical Properties of Lemmleinite-KHide

Lustre:
Vitreous
Transparency:
Transparent, Translucent
Colour:
Colourless
Streak:
White
Hardness:
5 on Mohs scale
Tenacity:
Brittle
Fracture:
Conchoidal
Density:
2.80(5) g/cm3 (Measured)    2.86 g/cm3 (Calculated)

Optical Data of Lemmleinite-KHide

Type:
Biaxial (+)
RI values:
nα = 1.667 nβ = 1.677 nγ = 1.802
2V:
Measured: 32° (1)
Max Birefringence:
δ = 0.135
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r > v or r < v

Chemistry of Lemmleinite-KHide

Mindat Formula:
K2(Ti,Nb)2(Si4O12)(OH,O)2 · 4H2O
Elements listed:
H, K, Nb, O, Si, Ti - search for minerals with similar chemistry
Common Impurities:
Na

Crystallography of Lemmleinite-KHide

Crystal System:
Orthorhombic
Morphology:
pseudo-orthorhombic, spindle-like crystals
Twinning:
Polysynthetic on (001).
Comment:
: Monoclinic. Point Group: 2/m.; Space Group: C2/m.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0012501Lemmleinite-KRastsvetaeva R K, Arakcheeva A V, Khomyakov A P (1996) Crystal structure and microtwinning of a new monoclinic analog of nenadkevichite Doklady Chemistry 351 294-2971996Khibiny alkaline massif, Kola Peninsula, Russia0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.186 Å(100)
6.94 Å(61)
6.39 Å(43)
4.91 Å(31)
2.600 Å(28)
2.586 Å(28)
2.489 Å(24)
Comments:
6.39 (43, broad)

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 Lemmleinite-KHide

Synonyms of Lemmleinite-KHide

Other Language Names for Lemmleinite-KHide

Relationship of Lemmleinite-K to other SpeciesHide

Member of:
Lemmleinite Group > Labuntsovite Supergroup
Other Members of Lemmleinite Group:
Lemmleinite-BaNa2K2Ba(Ti,Nb)4(Si4O12)2(O,OH)4 · 5H2OMon. 2/m : B2/m

Common AssociatesHide

Associated Minerals Based on Photo Data:
5 photos of Lemmleinite-K associated with SitinakiteKNa2Ti4(SiO4)2O5(OH) · 4H2O
4 photos of Lemmleinite-K associated with Sazykinaite-(Y)Na5YZr[SiO3]6 · 6H2O
2 photos of Lemmleinite-K associated with PectoliteNaCa2Si3O8(OH)
2 photos of Lemmleinite-K associated with AegirineNaFe3+Si2O6
1 photo of Lemmleinite-K associated with Rhabdophane-(Ce)Ce(PO4) · 0.6H2O

Related Minerals - Strunz-mindat GroupingHide

9.CE.Dutkevichite-(Ce)NaZnBa2Ce2Ti2Si8O26F · H2OOrth. mm2 : Ama2
9.CE.NiobobaotiteBa4(Ti2.5Fe2+1.5)Nb4Si4O28ClTet. 4/m : I41/a
9.CE.AmaterasuiteSr4Ti6Si4O23(OH)ClOrth. mmm (2/m 2/m 2/m) : Fddd
9.CE.SteiningeriteBa2Zr2(Si4O12)O2Tet. 4/mmm (4/m 2/m 2/m) : P4/mbm
9.CE.05PapagoiteCaCu[H3AlSi2O9]Mon. 2/m : B2/m
9.CE.10VerplanckiteBa4Mn2+2Si4O12(OH,H2O)3Cl3Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm
9.CE.15BaotiteBa4(Ti,Nb,W)8O16(SiO3)4ClTet. 4/m : I41/a
9.CE.20NagashimaliteBa4(V,Ti)4B2Si8O27(O,OH)2ClOrth. mmm (2/m 2/m 2/m) : Pmmn
9.CE.20TaramelliteBa4(Fe3+,Ti,Fe2+,Mg)4(B2Si8O27)O2ClxOrth. mmm (2/m 2/m 2/m) : Pmmn
9.CE.20TitantaramelliteBa4(Ti,Fe3+,Fe2+,Mg)4(B2Si8O27)O2ClxOrth. mmm (2/m 2/m 2/m)
9.CE.25Bario-orthojoaquinite(Ba,Sr)4Fe2Ti2[Si4O12]2O2 · H2OOrth.
9.CE.25Byelorussite-(Ce)NaBa2Ce2MnTi2[Si4O12]2O2(F,OH) · H2OOrth. mm2 : Ama2
9.CE.25Joaquinite-(Ce)NaBa2Ce2FeTi2[Si4O12]2O2(OH,F) · H2OMon. 2 : B2
9.CE.25Orthojoaquinite-(La)NaBa2La2Fe2+Ti2[Si4O12]2O2(O,OH) · H2OOrth. mmm (2/m 2/m 2/m)
9.CE.25StrontiojoaquiniteSr2Ba2(Na,Fe)2Ti2[Si4O12]2O2(O,OH)2 · H2OMon.
9.CE.25Orthojoaquinite-(Ce)NaBa2Ce2FeTi2[Si4O12]2O2(O,OH) · H2OOrth.
9.CE.25Strontio-orthojoaquinite(Na,Fe)2Sr2Ba2Ti2[Si4O12]2O2(O,OH)2 · H2OOrth.
9.CE.30eLabuntsovite-MnNa4K4(Ba,K)2Mn2+(Ti,Nb)8(Si4O12)4(O,OH)8 · 10-12H2OMon. 2/m : B2/m
9.CE.30bTsepinite-NaNa2(Ti,Nb)2(Si4O12)(OH,O)2 · 3H2OMon. m : Bm
9.CE.30cGjerdingenite-NaK2Na(Nb,Ti)4(Si4O12)2(OH,O)4 · 5H2OMon. 2/m : B2/m
9.CE.30hAlsakharovite-ZnNaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4 · 7H2OMon. m : Bm
9.CE.30cBurovaite-Ca(Na,K)4Ca2(Ti,Nb)8(Si4O12)4(OH,O)8 · 12H2OMon. 2/m : B2/m
9.CE.30aNenadkevichite(Na,◻)8Nb4(Si4O12)2(O,OH)4 · 8H2OOrth. mmm (2/m 2/m 2/m) : Pbam
9.CE.30bTsepinite-SrSr(Ti,Nb)2(Si4O12)(OH,O)2 · 3H2OMon. m : Bm
9.CE.30cGjerdingenite-MnK2Mn2+(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2OMon. 2/m : B2/m
9.CE.30bParatsepinite-Na(Na,Sr,K,Ca)7(Ti,Nb)8(Si4O12)4(O,OH)8 · nH2O n ~ 8Mon. 2/m : B2/m
9.CE.30cKarupmøllerite-Ca(Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4 · 7H2OMon. 2/m : B2/m
9.CE.30cLepkhenelmite-Zn(Ba,K)2Zn(Ti,Nb)4(Si4O12)2(O,OH)4 · 7H2OMon. m : Bm
9.CE.30hGutkovaite-MnK2CaMn(Ti,Nb)4(Si4O12)2(O,OH)4 · 5H2OMon. m : Bm
9.CE.30eLabuntsovite-MgNa4K4(Ba,K)2Mg(Ti,Nb)8(Si4O12)4(O,OH)8 · 10H2OMon. 2/m : B2/m
9.CE.30eLabuntsovite-FeNa4K4(Ba,K)2Fe2+(Ti,Nb)8(Si4O12)4(O,OH)8 · 10H2OMon. 2/m : B2/m
9.CE.30cKuzmenkoite-ZnK2Zn(Ti,Nb)4(Si4O12)2(OH,O)4 · 6-8H2OMon. m : Bm
9.CE.30fParalabuntsovite-MgNa8K8Mg4Ti16(Si4O12)8(OH,O)16 · 20-24H2OMon. 2/m : B2/m
9.CE.30dLemmleinite-BaNa2K2Ba(Ti,Nb)4(Si4O12)2(O,OH)4 · 5H2OMon. 2/m : B2/m
9.CE.30gOrganovaite-MnK2Mn(Nb,Ti)4(Si4O12)2(O,OH)4 · 5-7H2OMon. 2/m : B2/m
9.CE.30gOrganovaite-ZnK2Zn(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2OMon. 2/m : B2/m
9.CE.30bVuoriyarvite-KK2(Nb,Ti)2(Si4O12)(O,OH)2 · 4H2OMon. m : Bm
9.CE.30cGjerdingenite-FeK2Fe2+(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2OMon. 2/m : B2/m
9.CE.30aUnnamed (Ca-Na-ordered analogue of Korobitsynite)(Ca,Na)2(Ti,Nb)2(Si4O12)(OH,O)2 · 3-4H2OOrth. 2 2 2 : P21 21 2
9.CE.30gParakuzmenkoite-Fe(K,Ba)4Fe(Ti,Nb)8(Si4O12)4(O,OH)8 · 14H2OMon. 2/m : B2/m
9.CE.30aKorobitsynite(Na,◻)4Ti2(Si4O12)(O,OH)2 · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbam
9.CE.30cKuzmenkoite-MnK2Mn2+(Ti,Nb)4(Si4O12)2(OH,O)4 · 5-6H2OMon. 2/m : B2/m
9.CE.30bTsepinite-KK2(Ti,Nb)2(Si4O12)(OH,O)2 · 3H2OMon. m : Bm
9.CE.30bParatsepinite-BaBa4(Ti,Nb)8(Si4O12)4(OH,O)8 · 8H2OMon. 2/m : B2/m
9.CE.30hNeskevaaraite-FeK3Na2Fe2+(Ti,Nb)4(Si4O12)2(O,OH)4 · 5-6 H2OMon. m : Bm
9.CE.30cGjerdingenite-CaK2Ca(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2OMon. 2/m : B2/m
9.CE.30bTsepinite-Ca(Ca,K,Na)2-x(Ti,Nb)2(Si4O12)(OH,O)2 · 4H2OMon. 2/m : B2/m
9.CE.45Natrokomarovite(Na,Ca,H)2Nb2Si2O10(OH,F)2 · H2OOrth.
9.CE.45Komarovite(Ca,Mn)(Nb,Ti)2[Si2O7](O,F)3 · 3.5H2OOrth. mmm (2/m 2/m 2/m) : Cmmm

Other InformationHide

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 Lemmleinite-KHide

References for Lemmleinite-KHide

Localities for Lemmleinite-KHide

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.
Russia
 
  • Murmansk Oblast
    • Khibiny Massif
      • Koashva Mt
Arzamastsev et al. (2008)
Khomyakov et al. (1999) +3 other references
Pekov et al. (2004)
Arzamastsev et al. (2008) +1 other reference
    • Kovdorsky District
      • Kovdor Massif
    • Lovozersky District
      • Seidozero Lake
        • Lepkhe-Nel'm Mt
Pavel M. Kartashov analytical data (2011)
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