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About SekaninaiteHide

grayish-blue to bluish-violet
Crystal System:
Named in honor of Josef Sekanina (4 September 1901, Knínice u Boskovic - 28 November 1986, Letovice), Czech mineralogist who first found the mineral.
Dimorph of:

Classification of SekaninaiteHide

First Published:

9 : SILICATES (Germanates)
C : Cyclosilicates
J : [Si6O18]12- 6-membered single rings (sechser-Einfachringe), without insular complex anions

61 : CYCLOSILICATES Six-Membered Rings
2 : Six-Membered Rings with Al substituted rings

16 : Silicates Containing Aluminum and other Metals
19 : Aluminosilicates of Fe and Mg

Physical Properties of SekaninaiteHide

Transparent, Translucent
grayish-blue to bluish-violet
7½ on Mohs scale

Optical Data of SekaninaiteHide

Biaxial (-)
RI values:
nα = 1.561 nβ = 1.572 nγ = 1.576
Measured: 66° , Calculated: 60°
Max Birefringence:
δ = 0.015
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of SekaninaiteHide

IMA Formula:
Common Impurities:

Crystallography of SekaninaiteHide

Crystal System:
Cell Parameters:
a = 17.18 Å, b = 9.82 Å, c = 9.29 Å
a:b:c = 1.749 : 1 : 0.946
Unit Cell V:
1,567.29 ų (Calculated from Unit Cell)
Type material - usually twinned on {ll0} and {310}, simulating hexagonal symmetry.

Type Occurrence of SekaninaiteHide

Place of Conservation of Type Material:
Moravian Museum, Brno, Czech Republic, A6108.
Stanek, J. and Miskovsky, J. (1975) Sekaninaite, a new mineral of the cordierite series, from Dolni Bory, Czechoslovakia. Scripta Facultati Scientiarum Naturalium Ujep Brunensis, Geologia: 1(5): 21-30.

Synonyms of SekaninaiteHide

Other Language Names for SekaninaiteHide

Relationship of Sekaninaite to other SpeciesHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Orthoclase1 photo of Sekaninaite associated with Orthoclase on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.CJ.05BazziteBe3Sc2(Si6O18)Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CJ.05BerylBe3Al2(Si6O18)Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CJ.05IndialiteMg2Al3(AlSi5O18)Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CJ.05StoppaniiteBe3Fe3+2(Si6O18) · H2OHex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CJ.10Cordierite(Mg,Fe)2Al3(AlSi5O18)Orth. mmm (2/m 2/m 2/m) : Cccm
9.CJ.15aCombeiteNa4.5Ca3.5Si6O17.5(OH)0.5Trig. 3m (3 2/m) : R3m
9.CJ.15cKoashviteNa6(Ca,Mn)(Ti,Fe)Si6O18 · H2OOrth.
9.CJ.15aLovozeriteNa2Ca(Zr,Ti)(Si6O12)[(OH)4O2] · H2OMon.
9.CJ.15aTisinaliteNa3H3(Mn,Ca,Fe)TiSi6(O,OH)18 · 2H2OTrig.
9.CJ.15aLitvinskiteNa2(◻,Na,Mn)ZrSi6O12(OH,O)6Mon. m : Bm
9.CJ.15aKapustiniteNa5(Na,Mn2+)<1Zr(H2Si6O18)Mon. 2/m
9.CJ.25BaratoviteKCa7(Ti,Zr)2Li3Si12O36F2Mon. 2/m : B2/b
9.CJ.25KatayamaliteKLi3Ca7Ti2(SiO3)12(OH)2Mon. 2/m : B2/b
9.CJ.25AleksandroviteKCa7Sn2Li3Si12O36F2Mon. 2/m : B2/b
9.CJ.30DioptaseCuSiO3 · H2OTrig. 3 : R3
9.CJ.35KostyleviteK2Zr(Si3O9) · H2OMon.
9.CJ.40PetarasiteNa5Zr2(Si6O18)(Cl,OH) · 2H2OMon. 2/m : P21/m
9.CJ.45Gerenite-(Y)(Ca,Na)2(Y,REE)3Si6O18 · 2H2OTric.
9.CJ.60PezzottaiteCs(Be2Li)Al2(Si6O18)Trig. 3 : R3

Related Minerals - Dana Grouping (8th Ed.)Hide,Fe)2Al3(AlSi5O18)Orth. mmm (2/m 2/m 2/m) : Cccm

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

16.19.1IndialiteMg2Al3(AlSi5O18)Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
16.19.2Cordierite(Mg,Fe)2Al3(AlSi5O18)Orth. mmm (2/m 2/m 2/m) : Cccm
16.19.5StauroliteFe2+2Al9Si4O23(OH)Mon. 2/m : B2/m
16.19.6Chloritoid(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2Mon. 2/m : B2/b
16.19.7AmesiteMg2Al(AlSiO5)(OH)4Tric. 1 : P1
16.19.9YoderiteMg(Al,Fe3+)3(SiO4)2O(OH)Mon. 2/m : P21/m
16.19.11Ferrocarpholite(Fe2+,Mg)Al2(Si2O6)(OH)4Orth. mmm (2/m 2/m 2/m) : Ccca
16.19.15Berthierine(Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4Mon. m : Bm
16.19.16Odinite(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4Mon. m : Bm
16.19.17ClinochloreMg5Al(AlSi3O10)(OH)8Mon. 2/m : B2/m
16.19.22VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2OMon. 2/m
16.19.23Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2OOrth.

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.

References for SekaninaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Stanek, J. and Miskovsky, J. (1975) Sekaninaite, a new mineral of the cordierite series, from Dolni Bory, Czechoslovakia. Scripta Facultati Scientiarum Naturalium Ujep Brunensis, Geologia: 1(5): 21-30.
Fleischer, M., Jambor, J. (1977) New mineral names. American Mineralogist: 62: 395-397.
Hochella, M.F., Jr., Brown, G.E., Jr., Ross, F.K., and Gibbs, G.V. (1979) High-temperature crystal chemistry of hydrous Mg- and Fe-cordierites. American Mineralogist: 64: 337-351.
Ryback, G., Nawaz, R., and Farley, E. (1988) Seventh supplementary list of British Isles minerals (Irish). Mineralogical Magazine: 52: 267-274.
Černý, P., Chapman, R., Schreyer, W., Ottolini, L., Bottazzi, P., McCammon, C.A. (1997) Lithium in sekaninaite from the type locality, Dolní Bory, Czech Republic. The Canadian Mineralogist: 35: 167-173.
Yakubovich, O.V., Massa, V., Pekov, I.V., Gavrilenko, P.G., Chukanov, N.V. (2004) Crystal structure of the Na-, Ca-, Be-cordierite and crystallochemical regularities in the cordierite-sekaninaite series. Crystallography Reports: 49: 953-963.
Kaindl, R., Többens, D.M., Haefeker, U. (2011) Quantum-mechanical calculations of the Raman spectra of Mg- and Fe-cordierite. American Mineralogist: 96: 1568-1574.
Radica, F., Capitelli, F., Bellatreccia, F., Della Ventura, G., Cavallo, A., Piccinini, M., Hawthorne, F.C. (2013) Spectroscopy and X-ray structure refinement of sekaninaite from Dolní Bory (Czech Republic). Mineralogical Magazine: 77: 485-498.
Haefeker, U.; Kaindl, R.; Tropper, P.; Krüger, H.; Kahlenberg, V.; Orlova, M. (2014) Structural investigations of the two polymorphs of synthetic Fe-cordierite and Raman spectroscopy of hexagonal Fe-cordierite. Mineralogy and Petrology: 108: 469-478.
Dixon, A., Cempírek, J., Groat, L.A. (2014) Mineralogy and geochemistry of pegmatites on Mount Begbie, British Columbia. The Canadian Mineralogist: 52: 129-164.
Novák, M., Čopjaková, R., Dosbaba, M., Galiová, M.V., Všianský, D., Staněk, J. (2015) Two paragenetic types of cookeite from the Dolní Bory-Hatě Pegmatites, Moldanubian Zone, Czech Republic: Proximal and distal alteration productions of Li-bearing sekaninaite. The Canadian Mineralogist: 53: 1035-1048.

Internet Links for SekaninaiteHide

Localities for SekaninaiteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Tasmania
    • Dorset municipality
      • Scottsdale district
Bottrill & Baker (in prep) Catalogue of minerals of Tasmania; Bottrill, R.S., Taheri, J., Keele, R.A., McClenaghan, M.P. 1994. A field guide to gold deposits in northeastern Tasmania. MRT UR1994_19
  • Styria
    • Bad Radkersburg
      • Klöch
Taucher, J. & Hollerer, C. E. (1998): Minerale eines Si- und Al-reichen Xenoliths aus dem Basaltsteinbruch von Klöch, Nördlicher Bruch, (Steiermark, Österreich). Mitt. naturwiss. Ver. Steiermark 128, 21-42.
  • British Columbia
    • Revelstoke Mining Division
      • Revelstoke
DIXON,A., CEMPIREK, J. & GROAT, L.A. (2014) Mineralogy and geochemistry of pegmatites on Mount Begbie, British Columbia. Canadian Mineralogist 52, 129-164.; Dixon, A. (2014, October). Mount Begbie Pegmatite Group, British Columbia, Canada–evolution from Barren to Complex Rare-element Pegmatites. In 2014 GSA Annual Meeting in Vancouver, British Columbia.
  • Nova Scotia
    • Halifax Co.
D. Doell collection
Czech Republic
  • South Moravian Region
    • Tišnov
      • Drahonín
Škoda, R., Novák, M.: Akcesorické Nb-Ta-Ti minerály z pegmatitu v uranovém dole Drahonín, strážecké moldanubikum. Acta Musei Moraviae, Scientiae geologicae, 2004, roč. 89, s. 55 - 66.
  • Ústí Region
    • Bílina (Bilin)
Žáček V, Skála R., Dvořák Z.: Spinelidy v pyrometamorfovaných horninách Mostecké pánve. Minerál, 2010, 18, 1, 21-31.
  • Vysočina Region
    • Žďár nad Sázavou District
      • Křižanov
Scr.Fac.Sci.Nat. Ujep Brun.,geol.I (1975) no. 5, 21-30
Staněk, J.: Asociace minerálů významnějších pegmatitových žil v Hatích u Dolních Borů na západní Moravě. Acta Musei Moraviae, Scientiae naturales, 1997, roč. 82, 3-19.
Staněk, J.: Asociace minerálů významnějších pegmatitových žil v Hatích u Dolních Borů na západní Moravě. Acta Musei Moraviae, Scientiae naturales, 1997, roč. 82, 3-19. ; Novák, M., Johan, Z., Škoda, R., Černý, P., Šrein, V., & Veselovský, F. (2008). Primary oxide minerals in the system WO3–Nb2O5–TiO2–Fe2O3–FeO and their breakdown products from the pegmatite No. 3 at Dolní Bory-Hatě, Czech Republic. European Journal of Mineralogy, 20(4), 487-499.
Staněk, J.: Asociace minerálů významnějších pegmatitových žil v Hatích u Dolních Borů na západní Moravě. Acta Musei Moraviae, Scientiae naturales, 1997, roč. 82, 3-19.
Staněk, J.: Asociace minerálů významnějších pegmatitových žil v Hatích u Dolních Borů na západní Moravě. Acta Musei Moraviae, Scientiae naturales, 1997, roč. 82, 3-19.
  • South Karelia
    • Lappeenranta
Hytönen,K. (1999): Suomen Mineraalit. Geologian tutkimuskeskus. Erillisjulkaisu, Jyväskylä, 399 pp.
  • Southwest Finland
    • Kimitoön (Kemiönsaari)
Ilkka Mikkola
  • Bavaria
    • Upper Palatinate
      • Schwandorf
        • Winklarn
Keck, E., Mücke, A., Kronz, A. & Stanĕk, J. (2010): Sekaninait aus einem Pegmatitgang im Serpentinit von Galgenberg bei Winklarn in der Oberpfalz. Der Aufschluss 61, 1-16 (in German).
  • Piedmont
    • Verbano-Cusio-Ossola Province
      • Baveno
        • Feriolo
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" di Alba, Ed., Alba, 607 pp.
        • Oltrefiume
          • Mount Camoscio
Grill, E. (1935): I minerali del granito di Baveno, la fayalite. Periodico di Mineralogia, 129-133. - Gallitelli, P. (1936): Le miche del granito di Baveno. . Periodico di Mineralogia, 61-76 - Pagliani, G. (1948): Le Zeoliti del granito di Baveno. Periodico di Mineralogia, 175-188. - Ravagnani, D. (1974): I giacimenti uraniferi italiani - Gruppo Mineralogico Lombardo - Museo Civico di Storia Naturale di Milano, Ed., Milano, 188 pp. - min. Rec. 14 (3), 157-168 - Am. Min. 83, 1330-1334 (1998) - Am. Min. 84, 782-789 (1999). - Guastoni, A. & Pezzotta, F. (2004): Kristiansenite a Baveno, second ritrovamento Mondiale della specie. Rivista Mineralogica Italiana, 4/2004, 247-251. - Guastoni, A., Demartin, F., Pezzotta, F. (2004): Sekaninaite delle pegmatiti granitiche di Feriolo e Baveno (VB). Atti della Società Italiana di Scienze Naturali e del Museo Civico di Storia Naturale di Milano, 145, 59-68. - Mineralogist americano (2005) 90, 1442-1452.
Guastoni, A., Demartin, F., Pezzotta, F. (2004): Sekaninaite delle pegmatiti granitiche di Feriolo e Baveno (VB). Atti della Società Italiana di Scienze Naturali e del Museo Civico di Storia Naturale in Milano, 145, 59-68.
  • Sardinia
    • South Sardinia Province
      • Arburese
Bosi, F., Naitza, S., Skogby, H., Secchi, F., Conte, A.M., Cuccuru, S., Hålenius, U., De La Rosa, N., Kristiansson, P., Nilsson, E.J.C., Ros, L., and Andreozzi, G.B. (2018) Late magmatic controls on the origin of schorlitic and foititic tourmalines from late-Variscan peraluminous granites of the Arbus pluton (SW Sardinia, Italy): crystal-chemical study and petrological constraints. Lithos, vol. 308-309, 395-411.
  • Tuscany
    • Livorno Province
      • Elba Island
        • Campo nell'Elba
Orlandi P., Pezzotta F.(1994): La sekaninaite dei filoni pegmatitici elbani. Atti Soc. Tosc. Sc. Nat,. Mem., 100, 85-91. and Canadian Mineralogist 38:1399-1408 (2000)
Orlandi, P., & Pezzotta, F. (1997). Minerali dell'Isola d'Elba. Edizioni Novecento Grafico, Bergamo, 249 pp.
  • Fukuoka prefecture
    • Tagawa-gun
      • Kawasaki
Masutomi Museum specimens (Kyoto); Uehara, S., et al. (2014) Minerals from Kyushu and Yamaguchi. (Fukuoka Mineral Club, 355 pages)
  • Fukushima
Introduction to Japanese Minerals (Geological Survey of Japan, 1970)
  • Gifu
    • Nakatsugawa City
      • Hirukawa
Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
  • Nara
    • Yoshino-gun
      • Tenkawa village
        • Omine Mts
American Mineralogist 87: 160-170 (2002)
  • Arequipa
    • Caraveli Province
Yáñez, J., & Alfonso, P. (2014, May). Mineralogy of the Chaparra IOCG deposit, southern Peru. In EGU General Assembly Conference Abstracts (Vol. 16).
  • Lower Silesia
    • Jawor District
Körber, T. & Szuzkiewicz, A. (2010): Striegau/Strzegom - eine Weltklasse-Fundstelle für Pegmatitmineralien. Lapis 35 (7-8), 35-56; 86.; Gadas, P., Novák, M., Galiová, M. V., Szuszkiewicz, A., Pieczka, A., Haifler, J., & Cempírek, J. (2018). Secondary beryl in cordierite/sekaninaite pseudomorphs from granitic pegmatites–an indicator of elevated content of beryllium and Mg/(Mg+ Fe) ratio in the precursor. Advances of Geology in southeast European mountain belts, 181.
  • Silesia
    • Bytom District (Beuthen)
      • Bytom
Kruszewski, Ł. (2018)(?): Geochemical Behavior of Trace Elements in Upper and Lower Silesian Basin Coal-Fire Gob Piles, Poland. Coal and Peat Fires, vol. 5, xx-xx (in review/correction); Ł. Kruszewski EPMA/PXRD data
  • Chelyabinsk Oblast
Cesnokov, B., Kotrly, M. and Nisanbajev, T. (1998): Brennende Abraumhalden und Aufschlüsse im Tscheljabinsker Kohlenbecken - eine reiche Mineralienküche. Mineralien-Welt, 9 (3), 54-63 (in German).
  • Magadan Oblast
    • Kolyma River Basin
      • Ducat District
        • Omsukchan
Filimonova, L.G., and Trubkin, N.V. (2008): Geology of Ore Deposits 50(2), 135-144.
  • Murmansk Oblast
Olga Yakovleva, I. Pekov, I. Bryzgalov, Yu. Men’shikov, V. Yapaskurt, E. Guseva, N. Korotaeva (2009) Chalcogenide Minerals in Fenitized Xenoliths in Khibiny Alkaline Complex Kola Peninsula, Russia): Diversity and Chemical Features. Fifth International Symposium Mineral Diversity Research and Preservation pp213-216
Ivanyuk, G.Y., Pakhomovsky, Y.A., Konopleva, N.G., Yakovenchuk, V.N., Men’shikov, Y.P., and Mikhailova, Y.A. (2007): Geology of Ore Deposits 49(7), 599-606.
Yakovenchuk, V.N., Ivanyuk, G.Y., Pakhomovsky, Y.A., Men’shikov, Y.P., Konopleva, N.G., and Korchak, Y.A. (2008): Geology of Ore Deposits 50(8), 732-745.
  • Prešov Region
    • Prešov Co.
Košuth M., 2006: New type of cordierite assemblages from the Slanske vrchy Mts., Eastern Slovakia. Acta Miner.-Petrograph.,Abstract Series 5, Szeged, p.59
    • Vranov nad Topľou Co.
Ďuďa,R., et al., 1981: Mineralógia severnej časti Slanských vrchov. Min.Slovaca, Monografia 2, 98s
  • Värmland
    • Filipstad
Damman, A.H.(1989): Hydrothermal orthoamphibole-bearing assemblages from the Gåsborn area, West Bergslagen, central Sweden. American Mineralogist. 74, 573-585
  • Sughd
    • Zeravshan Range
      • Yagnob River
Sharygin, V.V., Sokol, E.V. and Belakovskii, D.I. (2009): Fayalite-sekaninaite paralava from the Ravat coal fire (central Tajikistan). Russian Geology and Geophysics 50, 703-721.
  • Northern Ireland
    • Co. Antrim
      • Rathlin Island
Wilson, H.E. and Robbie, J.A. (1966) Geology of the country around Ballycastle, Memoir Geol. Survey N.I., 2nd edn, pp. 243-244.; Ryback, G., Nawaz, R. and Farley, E. (1988) Seventh Supplementary List of British Isles Minerals (Irish). Mineralogical Magazine, vol. 52, n° 365, pp. 267-274.
  • Maine
    • Oxford Co.
      • Upper Cupsuptic
Anderson, 1991. Maine Mineral Localities, 2nd ed.
  • New Hampshire
    • Merrimack Co.
Harvard Mineralogical Museum, no. 118875
Mineral and/or Locality  
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