Help|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery


This page is currently not sponsored. Click here to sponsor this page.
The name reflects its chemical composition: potassium (latin, kalium), aluminium and silicium
A feldspathoid, usually rare but a rock-forming component of some Potassium-rich Silica-deficient igneous rocks.

Classification of Kalsilite

Approved, 'Grandfathered' (first described prior to 1959)

9 : SILICATES (Germanates)
F : Tektosilicates without zeolitic H2O
A : Tektosilicates without additional non-tetrahedral anions

76 : TECTOSILICATES Al-Si Framework
2 : Al-Si Framework Feldspathoids and related species

16 : Silicates Containing Aluminum and other Metals
3 : Aluminosilicates of K

Physical Properties of Kalsilite

Hardness (Mohs):

Optical Data of Kalsilite

Uniaxial (-)
RI values:
nω = 1.538 - 1.543 nε = 1.532 - 1.537
Max Birefringence:
δ = 0.006
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of Kalsilite

Elements listed in formula:
Common Impurities:

Crystallography of Kalsilite

Crystal System:
Class (H-M):
6 2 2 - Trapezohedral
Space Group:
P63 2 2
Cell Parameters:
a = 5.1589 Å, c = 8.6682(3) Å
a:c = 1 : 1.68
Unit Cell Volume:
V 199.79 ų
Date from Uchida et al. (2006); previous studies have provided several space groups for kalsilite: P6322 (Bannister and Hey, 1942), P63 (Perrotta et al., 1965), P63mc (Dollase and Freeborn, 1977), and P31c (Cellai et al., 1997).
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Type Occurrence of Kalsilite

Relationship of Kalsilite to other Species

Other Members of Group:
Cancrinite GroupA large, structurally complex group of alumosilicates.
Sodalite GroupThe Sodalite group have sodalite stacking producing cubo-octahedral cages that contain the anions and cations which ...

Other Names for Kalsilite

Name in Other Languages:

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.

Kalsilite in petrology

An essential component of (items highlighted in red)
Common component of (items highlighted in red)

References for Kalsilite

Reference List:
American Mineralogist (1943): 28: 62.

Liu, L. (1978) High-pressure phase transitions of kalsilite and related potassium bearing aluminosilicates. Geochemical Journal: 12: 275-277.

American Mineralogist (1992): 77: 19.

American Mineralogist (1997): 82: 276-279.

Mineralogical Magazine: 35: 588-595.

H. UCHIDA, R.T. DOWNS, H. YANG (2006): Crystal-chemical investigation of kalsilite from San Venanzo, Italy, using single-crystal X-ray diffraction and Raman spectroscopy. Geochimica et Cosmochimica Acta 70, A677.

A. Kremenovic and P. Vulic (2014): Disordered kalsilite KAlSiO4. Acta Crystallogr. C70, 256-259.

Internet Links for Kalsilite URL:
Please feel free to link to this page.

Localities for Kalsilite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
  • Eastern Antarctica
    • Queen Maud Land (Dronning Maud Land)
Riley, T.R., Curtis, M.L., Leat, P.T., Millar, I.L. (2009): The geochemistry of Middle Jurassic dykes associated with the Straumsvola-Tvora alkaline plutons, Dronning Maud Land, Antarctica and their association with the Karoo large igneous province. Mineralogical Magazine, 73, 2, 205-226.
Riley, T.R., Curtis, M.L., Leat, P.T., Millar, I.L. (2009): The geochemistry of Middle Jurassic dykes associated with the Straumsvola-Tvora alkaline plutons, Dronning Maud Land, Antarctica and their association with the Karoo large igneous province. Mineralogical Magazine, 73, 2, 205-226.
  • Styria
    • Bad Radkersburg
      • Klöch
R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
  • Yardymli District
Gupta, A K (2015) Origin of Potassium-rich Silica-deficient Igneous Rocks. Springer India
  • Goiás
    • Amorinópolis
Revista Brasileira de Geociências 30(3):417-420 (2000)
  • Santa Catarina
1995, Geochimica Brasiliensis, 8: 179-214.; Comin-Chiaramonti, P., de Barros Gomes, C., Castorina, F., di Censi, P., Antonini, P., Furtado, S., ... & Scheibe, L. F. (2008). Geochemistry and geodynamic implications of the Anitápolis and Lages alkaline-carbonatite complexes, Santa Catarina State, Brazil. Brazilian Journal of Geology, 32(1), 43-58.; G Traversa et al (1994) Petrology and Mineral Chemistry of the Alkaline District of Lages, SC, Brazil. Geochem Brazil 8:179-214
  • Nunavut
    • Baffin Island
Hogarth (1997) Canadian Mineralogist 35, 53-78.
  • Québec
    • Montérégie
      • Brome-Missisquoi RCM
PHILPOTTS, A.R., PATTISON, E.F. & FOX, J.S. (1967) Kalsilite, diopside and melilite in a sedimentary xenolith from Brome Mountain, Quebec. Nature 214, 1322-1323.
Democratic Republic of Congo (Zaïre)
  • Kivu
    • Goma
Haapala, I. L. M. A. R. I. (2011). Th. G. Sahama’s (1910–1983) volcanological and mineralogical studies in Africa: Part I. Expeditions to the Virunga Volcanic Field and petrological-mineralogical studies on the Nyiragongo volcano. Bulletin of the Geological Society of Finland, 83, 41-55.; Sahama, T. G. (1960). Kalsilite in the lavas of mt. Nyiragongo (Belgian Congo). Journal of Petrology, 1(2), 146-171.; Andersen, T., Elburg, M. A., & Erambert, M. (2014). Extreme peralkalinity in delhayelite-and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. Lithos, 206, 164-178.
Mineralogical Magazine (1958) 31 (2), 698-699.; Mineralogical Magazine 1957 31 : 698-699.
  • Occitanie
    • Aveyron
Eytier J.R. & Ch., Favreau G., Devouard B., Vigier J. (2004), Minéraux de pyrométamorphisme de Lapanouse-de Sévérac (Aveyron), Cahier des Micromonteurs, n°85, pp: 3-58
  • Rhineland-Palatinate
    • Eifel
      • Daun
        • Hinterweiler
Blass, G., Graf , HW., Neue Mineralienfunde aus der Vulkaneifel, MW 1/2001
        • Üdersdorf
Hentschel, G., Die Mineralien der Eifelvulkane, Weise Verlag München, 1983
      • Gerolstein
        • Roth
Blaß, G. & Kruijen, F. (2013): Die Mineralogischen Neuigkeiten aus der Vulkaneifel. Mineralien-Welt 24 (3), 33-41.
      • Hillesheim
Blass, G., Graf , HW., Neue Mineralienfunde aus der Vulkaneifel, Mineralien-Welt 1/2001
      • Mayen
        • Ettringen
          • Bellerberg volcano
            • Southern lava flow
              • Mayener Feld
Hentschel, G. (1987): Die Mineralien der Eifelvulkane, 2. edition, Weise Verlag
  • Qeqqata
    • Kangerlussuaq Fjord (Søndre Strømfjord)
      • Prinsen af Wales Bjerge
  • Andhra Pradesh
    • Visakhapatnam District
Gondwana Research 3(1): 65-77.
  • Negev
Vapnik, Y., Sokol, E., Murashko M., Sharygin V. (2006): The enigma of Hatrurim. Mineralogical Almanac, 10, 69-77.
  • Southern District (HaDarom District)
Galuskin, E.V., Galuskina, I.O., Gfeller, F., Krüger, B., Kusz, J., Vapnik, Y., Dulski, M., Dzierżanowski, P. (2016): Silicocarnotite, Ca5[(SiO4)(PO4)](PO4), a new ‘old’ mineral from the Negev Desert, Israel, and the ternesite-silicocarnotite solid solution: indicators of high-temperature alteration of pyrometamorphic rocks of the Hatrurim Complex, Southern Levant. European Journal of Mineralogy: 28: 105-12.
  • Abruzzo
    • L'Aquila Province
      • Carsoli
        • Pietrasecca
Comodi, P., Liu, Y., Stoppa, F., & Woolley, A. (1999). A multi-method analysis of Si-, S- and REE-rich apatite from a new find of kalsilite-bearing leucitite (Abruzzi, Italy). Mineralogical Magazine, 63: 661-672.
  • Campania
    • Naples Province
      • Somma-Vesuvius Complex
[Lapis 1994:5 p.13-23,58]
          • Pollena - Trocchia area
Russo, M., Punzo, I. (2004): I Minerali del Somma-Vesuvio, AMI
  • Latium
    • Rieti Province
      • Rieti
        • Santa Rufina
F. Stoppa and Y. Liu, Eur. J. Mineral. , 1995, 7, pp. 391-402.
    • Rome Province
      • Alban Hills
        • Marino
AA. VV., 1996. Collezionare minerali. Hobby & Work.
      • Sacrofano Caldera
        • Sacrofano
Mazzi F., Tadini C. (1981): Giuseppettite, a new mineral from Sacrofano (Italy), related to the cancrinite group. Neues Jahrb. Mineral. Mh., 3, 103-11.
  • Umbria
    • Perugia Province
      • Spoleto
Stoppa.F., Wolley A.R. and Bailey K. (2004). Extrusive carbonatites and their meaning: the case of Italy. 32nd International Geological Congress, Florence - Italy, August 20-28, 2004, pag. 7-8. L. Terrazzi Ed., Firenze, 2004
    • Terni Province
      • San Venanzo
Cingolani, G. (1974): Eccezionali cristalli di Kalsilite a S. Venanzo (Umbria). Notiziario del Gruppo Mineralogico Lombardo, 3/1974, 66-67.; Stoppa, F., Sharygin, V.V., and Cundari, A. (1997): Mineralogy and Petrology 61, 27-45.; Sharygin, V. V., Pekov, I. V., Zubkova, N. V., Khomyakov, A. P., Stoppa, F., & Pushcharovsky, D. Y. (2013). Umbrianite, K7Na2Ca2 [Al3Si10O29] F2Cl2, a new mineral species from melilitolite of the Pian di Celle volcano, Umbria, Italy. European Journal of Mineralogy, 25(4), 655-669.
  • Jalisco
    • Colima volcanic complex
Alok Krishna Gupta (2015) Origin of Potassium-rich Silica-deficient Igneous Rocks. Springer India
  • Dakhla-Oued Ed-Dahab Region
Bea, F., Montero, P., Haissen, F., & El Archi, A. (2013). 2.46 Ga kalsilite and nepheline syenites from the Awsard pluton, Reguibat Rise of the West African Craton, Morocco. Generation of extremely K-rich magmas at the Archean–Proterozoic transition. Precambrian Research, 224, 242-254.
  • Khomas Region
    • Windhoek District
      • Aris
Joachim Esche collection (Uwe Kolitsch SXRD + EDS)
  • Telemark
    • Skien
Jamtveit B., Dahlgren S. and Austrheim H. (1997): High-grade contact metamorphism of calcareous rocks from the Oslo Rift, Southern Norway. American Mineralogist. 82 : 1241 - 1254
  • Upper Silesia (Śląskie)
    • Katowice
Warchulski, R., Gawęda, A., Janeczek, J., Kądziołka-Gaweł, M. (2016): Mineralogy and origin of coarse-grained segregations in the pyrometallurgical Zn-Pb slags from Katowice-Wełnowiec (Poland). Mineralogy and Petrology: 110, (in press); in: (2016)
  • Eastern-Siberian Region
    • Prebaikalia (Pribaikal'e)
      • Irkutskaya Oblast'
Konev A A, Vorobjev E I, Sapozhnikov A N, Piskunov L F, Ushchapovskaya Z F (1995) Odintsovite – K2Na4Ca3Ti2Be4Si12O38 – a new mineral from Murunsky massif, Zapiski Vserossijskogo Mineralogicheskogo Obshchestva 124, issue 5, 92-96
    • Sakha Republic (Saha Republic; Yakutia)
      • Aldan Shield
        • Aldan
Gupta, A K (2015) Origin of Potassium-rich Silica-deficient Igneous Rocks. Springer India
        • Chara and Tokko Rivers Confluence
[Lapis 1993:4 p.13-20]
            • Ditmar stream
Pavel M. Kartashov data; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Vorob'yev, Y. I., Konev, A. A., Malyshonok, Y. V., Afonina, G. F., & Sapozhnikov, A. N. (1984). Tausonite, SrTiO3, a new mineral of the perovskite group. International Geology Review, 26(4), 462-465.
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
        • Khibiny Massif
Ageeva, O. A. and Borutzky, B. Y. (2004) Kalsilite In The Rocks Of Khibiny Massif: Morphology, Paragenesis, Genetic Conditions. New Data on Minerals 39:40-49
Pekov, I.V. & Podlesnyi, A.S. (2004): Kukisvumchorr Deposit: Mineralogy of Alkaline Pegmatites and Hydrotermalites. Mineralogical Almanac, vol. 7, 140 pages + xxiv photo's pages
Konopleva, N.G., Ivanyuk, G.Y., Pakhomovsky, Y.A., Yakovenchuk, V.N., Men’shikov, Y.P., and Korchak, Y.A. (2008): Geology of Ore Deposits 50(8), 720-731.; Ageeva, O. A. and Borutzky, B. Y. (2004) Kalsilite In The Rocks Of Khibiny Massif: Morphology, Paragenesis, Genetic Conditions. New Data on Minerals 39:40-49
Bea, F., Montero, P., Haissen, F., Rjimati, E., Molina, J. F., & Scarrow, J. H. (2014). Kalsilite-bearing plutonic rocks: The deep-seated Archean Awsard massif of the Reguibat Rise, South Morocco, West African Craton. Earth-Science Reviews, 138, 1-24.
        • Lovozero Massif
Pakhomovsky, Y. A., Ivanyuk, G. Y., & Yakovenchuk, V. N. (2014). Loparite-(Ce) in rocks of the Lovozero layered complex at Mt. Karnasurt and Mt. Kedykvyrpakhk. Geology of Ore Deposits, 56(8), 685-698.
Pekov, I.V., Chukanov, N.V., Kononkova, N.N., Zubkova, N.V., Rabadanov, M.K., and Pushcharovsky, D.Y. (2008): Geology of Ore Deposits 50(8), 749-754.
Uganda (TL)
  • Central Region
    • Gomba District
Bannister F A, Hey M H (1942) Kalsilite, a polymorph of KAlSiO4, from Uganda, Mineralogical Magazine 26, 218-225
Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © and the Hudson Institute of Mineralogy 1993-2017, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: April 28, 2017 09:26:51 Page generated: April 28, 2017 08:10:10
Go to top of page