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Osumilite-(Mg)

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About Osumilite-(Mg)Hide

Formula:
KMg2Al3(Al2Si10)O30
Colour:
Brown, blue
Lustre:
Vitreous
Hardness:
5 - 6
Crystal System:
Hexagonal
Member of:
Name:
For relation to osumilite.
The Mg analogue of Osumilite.
Mg-dominant (at the octahedral site) analogues of osumilite have been described several times (Armbruster and Oberhänsli, 1988; Balassone et al., 2008; Seryotkin et al., 2008), but published without approval by the CNMNC.
The mineral was finally approved as a valid species by the IMA in 2011, based upon a complete investigation of a type specimen from Bellerberg, Eifel, Rheinland-Pfalz, Germany (Chukanov et al., 2013).

NOTE: All localities listed here should be checked if they are to be assigned under osumilite-(Mg) or osumilite.


Classification of Osumilite-(Mg)Hide

Approved
Approval Year:
2011
9.CM.05

9 : SILICATES (Germanates)
C : Cyclosilicates
M : [Si6O18]12- 6-membered double rings (sechser-Doppelringe)
16.24.16

16 : Silicates Containing Aluminum and other Metals
24 : Aluminosilicates of Fe, Mg, Ca and alkalis

Physical Properties of Osumilite-(Mg)Hide

Vitreous
Colour:
Brown, blue
Hardness:
5 - 6 on Mohs scale

Optical Data of Osumilite-(Mg)Hide

Type:
Uniaxial (+)
RI values:
nω = 1.541 nε = 1.543
Max Birefringence:
δ = 0.002
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low

Chemical Properties of Osumilite-(Mg)Hide

Formula:
KMg2Al3(Al2Si10)O30
IMA Formula:
KMg2Al3(Al2Si10)O30

Chemical AnalysisHide

Oxide wt%:
 1
SiO260.37 %
Al2O322.95 %
TiO20.22 %
FeO (tot.)3.95 %
MnO0.13 %
MgO7.02 %
Na2O0.59 %
K2O4.14 %
Cr2O3tr. %
CaOtr. %
BaOtr. %
Total:99.37 %
Sample references:
IDLocalityReference
1Roadcut Fv 503 Vikesdal, Vikeså, Bjerkreim, Rogaland, NorwayMaijer, C.; Jansen, J. B. H.; Wevers, J. & Poorter, R. P. E. (1977): Contribution to the mineralogy of Norway, no 63. Osumilite, a new mineral to Norway. Norsk Geologisk Tidsskrift 57 (2): 187-188

Crystallography of Osumilite-(Mg)Hide

Crystal System:
Hexagonal
Class (H-M):
6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal
Space Group:
P6/mcc
Cell Parameters:
a = 10.0959(9) Å, c = 14.3282(2) Å
Ratio:
a:c = 1 : 1.419
Unit Cell V:
1,264.77 ų (Calculated from Unit Cell)
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.21(37)
5.538(36)
5.064(85)
4.137(45)
3.736(43)
3.234(100)
2.932(42)
2.767(51)

Type Occurrence of Osumilite-(Mg)Hide

Place of Conservation of Type Material:
Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 4174/1

Synonyms of Osumilite-(Mg)Hide

Other Language Names for Osumilite-(Mg)Hide

Relationship of Osumilite-(Mg) to other SpeciesHide

Member of:
Other Members of this group:
Agakhanovite-(Y)(YCa)□2KBe3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
AlmaruditeK(□,Na)2(Mn2+,Fe2+,Mg)2(Be,Al)3[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm
ArmeniteBaCa2Al6Si9O30 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnna
BerezanskiteK□2Li3(Ti,Zr,Sn)2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
Brannockite(K,Na)□2Li3(Sn,Zr,Ti)2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
DarapiositeK(Na,◻,K)2(Li,Zn,Fe)3(Mn,Zr,Y)2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
DusmatoviteK(Na,□)2(Zn,Li)3(Mn2+,Y,Zr)2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
EifeliteKNa3Mg4Si12O30Hex.
FriedrichbeckeiteK(□0.5Na0.5)2Mg2Be3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
Klöchite(□Na)KFe2+2Zn3(Si12O30)Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
Merrihueite(K,Na)2(Fe,Mg)5Si12O30Hex.
MilariteK2Ca4Al2Be4Si24O60 · H2OHex. 6/mmm (6/m 2/m 2/m) : P6/mcc
OftedaliteK(Sc,Ca,Mn2+)22[(Be,Al)3Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
Osumilite(K,Na)(Fe2+,Mg)2(Al,Fe3+)3(Si,Al)12O30Hex.
PoudretteiteKNa2B3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
Roedderite(Na,K)2(Mg,Fe)5Si12O30Hex. 6 m2 : P62c
ShibkoviteK(□,K,Na)2Zn3Ca2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
SogdianiteK(□,Na)2Li3(Zr,Fe,Ti)2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
SugiliteK(Na,□)2Li3(Fe,Mn,Al,Zr)2[Si12O30]Hex.
Trattnerite□(Fe3+,Mg,Fe2+)2(Mg,Fe2+,Fe3+)3(Si12O30)Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
UM1990-73-SiO:KMnNaZn(K,Na)2Zn3Mn1.5Si12O30Hex.
Yagiite(Na,K)3Mg4(Al,Mg)6(Si,Al)24O60Hex. 6/mmm (6/m 2/m 2/m)

Common AssociatesHide

Associated Minerals Based on Photo Data:
Cordierite4 photos of Osumilite-(Mg) associated with Cordierite on mindat.org.
Hematite3 photos of Osumilite-(Mg) associated with Hematite on mindat.org.
Tridymite1 photo of Osumilite-(Mg) associated with Tridymite on mindat.org.
Pumpellyite-(Mn2+)1 photo of Osumilite-(Mg) associated with Pumpellyite-(Mn2+) on mindat.org.
Albite-Anorthite Series1 photo of Osumilite-(Mg) associated with Albite-Anorthite Series on mindat.org.
Mullite1 photo of Osumilite-(Mg) associated with Mullite on mindat.org.
Mica Group1 photo of Osumilite-(Mg) associated with Mica Group on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.CM.05ArmeniteBaCa2Al6Si9O30 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnna
9.CM.05Brannockite(K,Na)□2Li3(Sn,Zr,Ti)2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05ChayesiteK(Mg,Fe)4FeSi12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05DarapiositeK(Na,◻,K)2(Li,Zn,Fe)3(Mn,Zr,Y)2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05EifeliteKNa3Mg4Si12O30Hex.
9.CM.05Merrihueite(K,Na)2(Fe,Mg)5Si12O30Hex.
9.CM.05MilariteK2Ca4Al2Be4Si24O60 · H2OHex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05Osumilite(K,Na)(Fe2+,Mg)2(Al,Fe3+)3(Si,Al)12O30Hex.
9.CM.05PoudretteiteKNa2B3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05Roedderite(Na,K)2(Mg,Fe)5Si12O30Hex. 6 m2 : P62c
9.CM.05SogdianiteK(□,Na)2Li3(Zr,Fe,Ti)2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05SugiliteK(Na,□)2Li3(Fe,Mn,Al,Zr)2[Si12O30]Hex.
9.CM.05Yagiite(Na,K)3Mg4(Al,Mg)6(Si,Al)24O60Hex. 6/mmm (6/m 2/m 2/m)
9.CM.05BerezanskiteK□2Li3(Ti,Zr,Sn)2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05DusmatoviteK(Na,□)2(Zn,Li)3(Mn2+,Y,Zr)2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05ShibkoviteK(□,K,Na)2Zn3Ca2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05AlmaruditeK(□,Na)2(Mn2+,Fe2+,Mg)2(Be,Al)3[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm
9.CM.05Trattnerite□(Fe3+,Mg,Fe2+)2(Mg,Fe2+,Fe3+)3(Si12O30)Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05OftedaliteK(Sc,Ca,Mn2+)22[(Be,Al)3Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.10FaizieviteK2Na(Ca6Na)Ti4Li6[F2|Si24O66]Tric. 1 : P1

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

16.24.1Aegirine-augite(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6Mon. 2/m : B2/b
16.24.2Omphacite(NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6Mon. 2/m
16.24.4Ferri-katophoriteNa(CaNa)(Mg4Fe3+)(AlSi7O22)(OH)2Mon.
16.24.5Ferro-ferri-katophoriteNa(NaCa)(Fe2+4Fe3+)(Si7Al)O22(OH)2Mon. 2/m : B2/m
16.24.6Barroisite☐{CaNa}{Mg3Al2}(AlSi7O22)(OH)2Mon.
16.24.7Ferri-barroisite☐(CaNa)(Mg3Fe3+2)(AlSi7O22)(OH)2
16.24.8Alumino-ferrobarroisite☐{CaNa}{Fe2+3Al2}(AlSi7O22)(OH)2
16.24.9Ferro-barroisite☐{CaNa}{Fe2+3Al2}(AlSi7O22)(OH)2Mon. 2/m : B2/m
16.24.10Ferro-ferri-barroisite☐(CaNa)(Fe2+3Fe3+2)(AlSi7O22)(OH)2
16.24.11Hastingsite{Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2Mon.
16.24.12Magnesio-hastingsite{Na}{Ca2}{Mg4Fe3+}(Al2Si6O22)(OH)2Mon.
16.24.13Taramite Root NameA(CaNa)(Z2+3Z3+2)(Al2Si6O22)(OH,F,Cl)2
16.24.14Ferri-taramiteNa(CaNa)(Mg3Fe3+2)(Al2Si6O22)(OH)2Mon.
16.24.15Magnesiotaramite{Na}{CaNa}{Mg3AlFe3+}(Al2Si6O22)(OH)2Mon.
16.24.16Osumilite(K,Na)(Fe2+,Mg)2(Al,Fe3+)3(Si,Al)12O30Hex.

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 Osumilite-(Mg)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Miyashiro, A. (1953) Osumilite, a new mineral, and cordierite in volcanic rocks. Proceedings of the Japan Academy: 29(7): 321-323.
Miyashiro, A. (1956) Osumilite, a new silicate mineral and its crystal structure. American Mineralogist: 41: 104-116.
Brown, G.E., Gibbs, G.V. (1969) Refinement of the crystal structure of Osumilite. American Mineralogist: 54: 101-116.
Olsen, E., Bunch, T.E. (1970) Compositions of natural Osumilites. American Mineralogist: 55, 875-879.
Chinner, G.A., Dixon, P.D. (1973) Irish Osumilite. Mineralogical Magazine: 3: 189-192.
Berg, J., Wheeler, E.P. (1976) Osumilite of deep-seated origin in the contact aureole of the anorthositic Nain complex, Labrador. American Mineralogist: 61: 20-37.
Goldman, D., Rossman, G. (1978) The site distribution of iron and anomalous biaxiality in Osumilite. American Mineralogist: 63: 490-498.
Schreyer, W., Hentschel, G., Abraham, K. (1983) Osumilith in der Eifel und die Verwendung dieses Minerals als petrogenetischer Indikator, Tschermaks mineralogische und petrographische Mitteilungen: 31: 215-234.
Armbruster, Th., Oberhänsli, R. (1988) Crystal chemistry of double-ring silicates: Structural, chemical, and optical variation in osumilites. American Mineralogist: 73: 585-594.
Parodi, G.C., Della Ventura, G., Lorand, J.P. (1989) Mineralogy and petrology of an unusual Osumilite + vanadium-rich pseudobrookite assemblage in an ejectum from the Vico Volcanic Complex (Latium, Italy). American Mineralogist: 74: 1278-1284.
Nowicki, T.E., Frimmel, H.E., Waters, D.J. (1995) The occurrence of Osumilite in pelitic granulites of the Namaqualand metamorphic complex, South Africa. South Africa Journal of Geology: 98: 191-201.
Sokol, E.V. (1997) The new genetic type of Osumilite occurrence. Zapiski RMO, Vol: 126(4): 43-53.
Balassone, G., Mormone, A., Rossi, M., Bernardi, A., Fisch, M., Armbruster, T., Malsy, K., Berger, A. (2008) Crystal chemical and structural characterisation of an Mg-rich Osumilite from Vesuvius volcano (Italy). European Journal of Mineralogy: 20: 713-720.
Chukanov, N.V., Pekov, I.V., Rastsvetaeva, R.K., Aksenov, S.M.,Belakovskiy, D.I., Schüller, W. and Ternes, B.(2012): Osumilite-(Mg), IMA 2011-083. CNMNC Newsletter No. 12, February 2012, page 153; Mineralogical Magazine, 76, 151-155.
Chukanov, N.; Pekov, I.; Rastsvetaeva, R.; Aksenov, S.; Belakovskiy, D.; Van, K.; Schüller, W.; Ternes, B. (2013): Osumilite-(Mg): Validation as a mineral species and new data. Geology of Ore Deposits 55, 587-593.

Internet Links for Osumilite-(Mg)Hide

Localities for Osumilite-(Mg)Hide

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.
Antarctica
 
  • Eastern Antarctica
    • Enderby Land
      • Napier Complex
        • Tula Mts
Grew, E. (1982): Osumilite in the Sapphirine-Quartz terrane of Enderby Land, Antarctica:…., American Mineralogist, Vol. 67, pp. 762-787
Grew, E. (1982): Osumilite in the Sapphirine-Quartz terrane of Enderby Land, Antarctica:…., American Mineralogist, Vol. 67, pp. 762-787
Grew, E. (1982): Osumilite in the Sapphirine-Quartz terrane of Enderby Land, Antarctica:…., American Mineralogist, Vol. 67, pp. 762-787
Grew, E. (1982): Osumilite in the Sapphirine-Quartz terrane of Enderby Land, Antarctica:…., American Mineralogist, Vol. 67, pp. 762-787
          • Mt. Riiser-Larsen
Grew, E. (1982): Osumilite in the Sapphirine-Quartz terrane of Enderby Land, Antarctica:…., American Mineralogist, Vol. 67, pp. 762-787
Grew, E. (1982): Osumilite in the Sapphirine-Quartz terrane of Enderby Land, Antarctica:…., American Mineralogist, Vol. 67, pp. 762-787
Canada
 
  • Newfoundland and Labrador
    • Labrador
      • Grenville
Arima, M., Gower, C. (1991): Osumilite-bearing Granulites in the Eastern Grenville Province, Eastern Labrador, Canada: Mineral Parageneses and Metamorphic Conditions, Journal of Petrolog, Vol. 32 (1), pp. 29-61
      • Nain Complex
Berg, J., Wheeler, E.P. (1976): Osumilite of deep-seated origin in the contact aureole of the anorthositic Nain complex, Labrador, American Mineralogist, Vol. 61, pp. 20-37
France
 
  • Auvergne-Rhône-Alpes
    • Haute-Loire
      • Le Puy-en-Velay
        • Espaly-Saint-Marcel
[Barrier D, Pourtier G, Médard P (2004) Minéralogie du mont Denise (Haute-Loire). Le Cahier des Micromonteurs 83: 3-11] [Médard E, Médard P, Pourtier G (2012) La chayesite, un autre minéral du groupe de l'osumilite à la Denise. Le Cahier des Micromonteurs 115: 22-23]
Germany
 
  • Hesse
    • Eschwege
Schreyer, W., Blümel, P. & Maresch, W. (1986): Cordierit und Osumilith aus den Buchiten der Blauen Kuppe bei Eschwege. Aufschluss, Jg.37, Nr.11, S.353-67
  • Rhineland-Palatinate
    • Andernach
      • Kruft
Leu, K. (2017): Unbekannte Fundstellen in der Eifel - der Tönchesberg bei Kruft, Mineralienwelt Vol. 28, 6, pp. 24-38
      • Nickenich
Schreyer, W., Hentschel, G., Abraham, K., Osumilith in der Eifel und die Verwendung dieses Minerals als petrogenetischer Indikator, Tscherm. Mineral.- Petrogr. Mitt. 31, 215-234, 1983
Hentschel, G., Osumilith in der Eifel und die Verwendung dieses Minerals als petrogenetischer Indikator, Tschermaks Min. Petr. Mitt, 31, 215-234, 1983
    • Daun
      • Strohn
Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors
      • Üdersdorf
Schäfer, H., Die Mineralien der Einschlüsse und Auswürflinge in den Schlacken des Emmelberges bei Üdersdorf / Eifel, Der Aufschluss 30, 273-282, 1979
    • Kelberg
      • Drees
Schüller, W., Die Mineralien des Niveligsberges bei Drees in der Eifel, Der Aufschluß SB 33, 1990
    • Mayen
      • Ettringen
        • Bellerberg volcano
Hentschel, G., Abraham, K., Schreyer, W., Roedderit und Osumilith aus dem Laacher Vulkangebiet , Fortschr. Mineral. 55, Beih. 1, 43-44, 1977; Chukanov, N.V., Pekov, I.V., Rastsvetaeva, R.K., Aksenov, S.M.,Belakovskiy, D.I., Schüller, W. and Ternes, B.(2012): Osumilite-(Mg), IMA 2011-083. CNMNC Newsletter No. 12, February 2012, page 153; Mineralogical Magazine, 76, 151-155; Chukanov, N.; Pekov, I.; Rastsvetaeva, R.; Aksenov, S.; Belakovskiy, D.; Van, K.; Schüller, W.; Ternes, B. (2013): Osumilite-(Mg): Validation as a mineral species and new data. Geology of Ore Deposits 55, 587-593.
    • Mendig
      • Bell
Schreyer, W., Hentschel, G., Abraham, K., Osumilith in der Eifel und die Verwendung dieses Minerals als petrogenetischer Indikator, Tscherm. Mineral.- Petrogr. Mitt. 31, 215-234, 1983
    • Niederzissen
      • Burgbrohl
Hentschel, G., Osumilith in der Eifel und die Verwendung dieses Minerals als petrogenetischer Indikator, Tschermaks Min. Petr. Mitt, 31, 215-234, 1983
    • Polch
      • Ochtendung
Hentschel, G., Die Mineralien der Eifelvulkane, Weise Verlag München, 1983
  • Thuringia
    • Gera
      • Ronneburg U deposit
T. Witzke & F. Rüger: Lapis 1998(7/8), 26-64
Hungary
 
  • Veszprém Co.
    • Balaton Uplands
      • Tapolcai Basin
        • Badacsonytomaj
GEODA 2007/1
India
 
  • Andhra Pradesh
    • Visakhapatnam District
      • Eastern Ghats Belt
Eur. J. Mineral. , 1991, 3, pp. 367-386.
Italy
 
  • Campania
    • Naples Province
      • Somma-Vesuvius Complex
        • Mt Vesuvius
Balassone G, Mormone A, Rossi M, Bernardi A, Fisch M, Armbruster T, Malsy AK, Berger A (2008) Crystal chemical and structural characterization of an Mg-rich osumilite from Vesuvius volcano (Italy). European Journal of Mineralogy 20: 713-720
  • Latium
    • Viterbo Province
      • Vico volcanic complex (Vico Lake)
Parodi GC, Dela Ventura G, Lorand JP (1989) Mineralogy and petrology of an unusual osumilite + vanadium-rich pseudobrookite assemblage in an ejectum from the Vico Volcanic Complex (Latium, Italy) American Mineralogist 74: 1278-1284
Parodi, G. C., Della Ventura, G., & Lorand, J. P. (1989). Mineralogy and petrology of an unusual osumilite+ vanadium-rich pseudobrookite assemblage in an ejectum from the Vico volcanic complex (Latium, Italy). American Mineralogist, 74(11-12), 1278-1284.
Signoretti, E., Carlini, R., Mattei, L. (2004): Località minori del vulcano Vicano: Pian di S. Martino, Le Carcarelle, Torre del Quercio. Il Cercapietre, 1-2, articolo 3; http://www.gminromano.it/Cercapietre/rivista04/testo/04A04.html
Japan
 
  • Hokkaido
    • Kitami
Kobayashi, T: (1978): Osumilites from Rishiri Islands, Hokkaido and Hoyato-cho, Kogashima Prefecture, Rept. Fac. Sci. Kogashima Univ., Vol. 8, pp. 61-69 (Japanese with English summary)
  • Honshu Island
    • Chubu Region
      • Gifu Prefecture
        • Hida City
          • Kawai-cho-tsukigase
            • Tsukigase Valley (Tsukigase-dani)
Hiroaki Tano and Alfredo Petrov collections
Labels of several dealers at Tokyo show, December 2005.
  • Kyushu Region
    • Kagoshima Prefecture
      • Satsumasendai City
        • Iriki
Alfredo Petrov - unpublished documents
    • Oita prefecture
      • Beppu
Yokomizo & Miyachi (1978) Ganseki-Koubutsu-Koshogaku Zasshi, 73, 180-182.
      • Hayami-gun
Alfredo Petrov collection
New Zealand
 
  • North Island
    • Bay of Plenty Region (Te Moana-a-Toi)
      • Rotorua District
        • Mount Ngongotaha
Grapes, R., Thornton, J., and Howard, D. (1993. Vug minerals in rhyolite, Hendersons Quarry, Mount Ngongotaha, Geological Society of New Zealand, Miscellaneous Publication 79A: 76.
Norway
 
  • Rogaland
    • Bjerkreim
      • Vikeså
Maijer, C.; Jansen, J. B. H.; Wevers, J. & Poorter, R. P. E. (1977): Contribution to the mineralogy of Norway, no 63. Osumilite, a new mineral to Norway. Norsk Geologisk Tidsskrift 57 (2), 187-188
    • Lund
      • Flatestøl
Waters, D. J. (1991): Hercynite-quartz granulites; phase relations, and implications for crustal processes. European Journal of Mineralogy 3: 367-386
Peru
 
  • Puno Department
Eur. J. Mineral. , 1994, 6, pp. 145-150.
Russia
 
  • Far-Eastern Region
    • Khabarovskiy Kray
      • Stanovoi Range
Bogdanova N.G., Troneva N.V., Sukhanov M.K., Berkhin S.I. (1980) On the first occurrence of metamorphical osumilite in USSR, - DAN SSSR, v.250, N.3, pp. 690-693 (in Rus.)
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast'
Seryotkin, Y. et al. (2008): Pyrometamorphic osumilite: occurence, paragenesis, and crystal structure as compared to cordierite, European Journal of Mineralogy, Vol. 20, pp. 191-198
South Africa
 
  • Northern Cape Province
    • Namakwa District (Namaqualand)
      • Okiep Copper District
Nowicki, T. E., Frimmel, H. E., and Waters, D. J., (1995): The occurrence of osumilite in pelitic granulites of the Namaqualand Metamorphic Complex, South Africa. - South African. Journal of Geology, Vol. 98, pp. 191-201.; Hokada, T., Motoyoshi, Y., Hiroi, Y., Shimura, T., Yuhara, M., Shiraishi, K., ... & Knoper, M. W. (2001). Petrography and mineral chemistry of high-grade pelitic gneisses and related rocks from Namaqualand, South Africa. Memoirs of National Institute of Polar Research. Special issue, 55, 105-126.
Uganda
 
  • Northern Region
    • Kotido District (Karamoja District)
Eur. J. Mineral. , 1991, 3, pp. 367-386.
UK
 
  • Northern Ireland
    • Co. Antrim
Chinner, G.A. and Dixon, P.D. (1973): Irish osumilite. Mineralogical Magazine, vol. 39, n° 302, 189-192.; Embrey, P.G. (1978) Fourth supplementary list of British minerals. Mineralogical Magazine, vol. 42, n° 322, 169-177. (referring to Chinner & Dixon);
USA
 
  • Oregon
    • Lane Co.
      • McKenzie Pass
        • North Sister Mountain
D.E. Russell Collection
Mineral and/or Locality  
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