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Karupmøllerite-Ca

A valid IMA mineral species
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09000230017271929689654.jpg
Karupmøllerite-Ca

Rischorr Mt, Khibiny Massif, Murmansk Oblast, Russia
04603130017271929713250.jpg
Karupmøllerite-Ca

Rischorr Mt, Khibiny Massif, Murmansk Oblast, Russia
05931390017271929749273.jpg
Karupmøllerite-Ca

Mellemelv Stream Valley, Head of Kangerluarsuk, Kangerluarsuk Fjord, Ilímaussaq complex, Kujalleq, Greenland
09000230017271929689654.jpg
Karupmøllerite-Ca

Rischorr Mt, Khibiny Massif, Murmansk Oblast, Russia
04603130017271929713250.jpg
Karupmøllerite-Ca

Rischorr Mt, Khibiny Massif, Murmansk Oblast, Russia
05931390017271929749273.jpg
Karupmøllerite-Ca

Mellemelv Stream Valley, Head of Kangerluarsuk, Kangerluarsuk Fjord, Ilímaussaq complex, Kujalleq, Greenland
09000230017271929689654.jpg
Karupmøllerite-Ca

Rischorr Mt, Khibiny Massif, Murmansk Oblast, Russia
04603130017271929713250.jpg
Karupmøllerite-Ca

Rischorr Mt, Khibiny Massif, Murmansk Oblast, Russia
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About Karupmøllerite-CaHide

03764220017271929783839.jpg
Sven Karup-Møller
Formula:
(Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4 · 7H2O
Colour:
Grey-white to reddish-white
Lustre:
Vitreous, Dull
Hardness:
5
Specific Gravity:
2.71
Crystal System:
Monoclinic
Name:
Named in honor of Sven Karup-Møller (b. 1936), mineralogist at the Technical University of Denmark, and discoverer of the mineral.
This page provides mineralogical data about Karupmøllerite-Ca.


Unique IdentifiersHide

Mindat ID:
11159
Long-form identifier:
mindat:1:1:11159:7

IMA Classification of Karupmøllerite-CaHide

Classification of Karupmøllerite-CaHide

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

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

Physical Properties of Karupmøllerite-CaHide

Lustre:
Vitreous, Dull
Transparency:
Translucent
Colour:
Grey-white to reddish-white
Streak:
White
Hardness:
5 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Density:
2.71 g/cm3 (Measured)    2.75 g/cm3 (Calculated)

Chemistry of Karupmøllerite-CaHide

Mindat Formula:
(Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4 · 7H2O
Elements listed:
Ca, H, K, Na, Nb, O, Si, Ti - search for minerals with similar chemistry

Crystallography of Karupmøllerite-CaHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 14.641(1) Å, b = 14.214(1) Å, c = 7.91(2) Å
β = 117.36(1)°
Ratio:
a:b:c = 1.03 : 1 : 0.556
Unit Cell V:
1,461.99 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Pseudomorphs to 2 x 1.5 x 0.1 cm after lamellae of epistolite.
Twinning:
None observed.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.104 Å(73)
7.026 Å(100)
6.482 Å(45)
4.996 Å(74)
3.253 Å(38)
3.250 Å(36)
3.242 Å(34)
3.171 Å(56)
3.150 Å(38)
Comments:
Mellemelv Stream Valley, Ilímaussaq complex, Greenland. The data are from Pekov et al. (2002).

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 Karupmøllerite-CaHide

Synonyms of Karupmøllerite-CaHide

Other Language Names for Karupmøllerite-CaHide

Relationship of Karupmøllerite-Ca to other SpeciesHide

Member of:
Kuzmenkoite Group > Labuntsovite Supergroup
Other Members of Kuzmenkoite Group:
Burovaite-Ca(Na,K)4Ca2(Ti,Nb)8(Si4O12)4(OH,O)8 · 12H2OMon. 2/m : B2/m
Gjerdingenite-CaK2Ca(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2OMon. 2/m : B2/m
Gjerdingenite-FeK2Fe2+(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2OMon. 2/m : B2/m
Gjerdingenite-MnK2Mn2+(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2OMon. 2/m : B2/m
Gjerdingenite-NaK2Na(Nb,Ti)4(Si4O12)2(OH,O)4 · 5H2OMon. 2/m : B2/m
Kuzmenkoite-MnK2Mn2+(Ti,Nb)4(Si4O12)2(OH,O)4 · 5-6H2OMon. 2/m : B2/m
Kuzmenkoite-ZnK2Zn(Ti,Nb)4(Si4O12)2(OH,O)4 · 6-8H2OMon. m : Bm
Lepkhenelmite-Zn(Ba,K)2Zn(Ti,Nb)4(Si4O12)2(O,OH)4 · 7H2OMon. m : Bm

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Karupmøllerite-Ca associated with ManganoneptuniteKNa2Li(Mn2+)2Ti2[Si4O12]2

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.30dLemmleinite-KK2(Ti,Nb)2(Si4O12)(OH,O)2 · 4H2OOrth.
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 Karupmøllerite-CaHide

References for Karupmøllerite-CaHide

Reference List:
Lapis 2003: (1): 50.
Chukanov, N.V., Pekov, I.V., Rastsvetaeva, R.K., Nekrasov, A.N. (1999) Labuntsovite: solid solutions and features of the crystal structure. The Canadian Mineralogist: 37: 901-910.
Yamnova, N.A., Pekov, I.V., Kabalov, Yu.K., Schneider, J., Chukanov, N.V. (2000): Crystal structure of a new Ca,Nb-representative of the labuntsovite group. Doklady Chemistry: 375(4–6): 263–266
Pekov, I. V., Chukanov, N. V., Petersen, O. V., Zadov, A. E., Yamnova, N. A., Kabalov, Y. K., Schneider, J. (2002) Karupmøllerite–Ca, (Na,Ca,K)2Ca(Nb,Ti)4 (Si4O12)2(O,OH)4·7H2O, a new mineral of the labuntsovite group from the Ilímaussaq alkaline complex, South Greenland. Neues Jahrbuch für Mineralogie - Monatshefte, 2002 (10) 433-444 doi:10.1127/0028-3649/2002/2002-0433
Rastsvetaeva, R. K., Chukanov, N. V. (2002) X-ray diffraction and IR spectroscopy study of labuntsovite-group minerals. Crystallography Reports, 47 (6) 939-945 doi:10.1134/1.1523537
Chukanov, Nikita V., Pekov, Igor V., Khomyakov, Alexander P. (2002) Recommended nomenclature for labuntsovite-group minerals. European Journal of Mineralogy, 14 (1) 165-173 doi:10.1127/0935-1221/2002/0014-0165
Pekov, I. V., Chukanov, N. V., Petersen, O. V., Zadov, A. E., Yamnova, N. A., Kabalov, Y. K., Schneider, J. (2002) Karupmøllerite–Ca, (Na,Ca,K)2Ca(Nb,Ti)4 (Si4O12)2(O,OH)4·7H2O, a new mineral of the labuntsovite group from the Ilímaussaq alkaline complex, South Greenland. Neues Jahrbuch für Mineralogie - Monatshefte, 2002 (10) 433-444 doi:10.1127/0028-3649/2002/2002-0433
Jambor, J.L., Kovalenker, V.A., Roberts, A.C. (2003) New mineral names. American Mineralogist: 88: 931-935.
Mandarino, Joseph A. (2003) New minerals. The Canadian Mineralogist, 41 (3) 803-828 doi:10.2113/gscanmin.41.3.803

Localities for Karupmøllerite-CaHide

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.
Greenland
 
  • Kujalleq
Petersen (2001)
      • Kangerluarsuk Fjord
        • Head of Kangerluarsuk
Pekov et al. (2002)
Russia
 
  • Murmansk Oblast
    • Khibiny Massif
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