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Nyerereite

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About NyerereiteHide

Julius K. Nyerere
Formula:
Na2Ca(CO3)2
Colour:
Colourless
Specific Gravity:
2.41
Crystal System:
Orthorhombic
Name:
Named by C. Milton in 1968 in honor of Julius Kambarage Nyerere (29 October 1964, Butiama, Tanganyika – 5 November 1985, London, United Kingdom), president of Tanganyika and then Tanzania 1964-1985. The original description contained only a name and composition. A later proposed name of natrofairchildite (in another paper that included data) was denied and nyerereite was given priority.
Dimorph of:

Classification of NyerereiteHide

Approved
Approval Year:
1963
5.AC.10

5 : CARBONATES (NITRATES)
A : Carbonates without additional anions, without H2O
C : Alkali and alkali-earth carbonates
14.3.4.1

14 : ANHYDROUS NORMAL CARBONATES
3 : A2B(XO3)2
11.1.10

11 : Carbonates
1 : Carbonates of the alkali metals and ammonium

Physical Properties of NyerereiteHide

Transparency:
Transparent
Colour:
Colourless
Density:
2.41 g/cm3 (Measured)    

Optical Data of NyerereiteHide

Type:
Biaxial (-)
RI values:
nα = 1.511 nβ = 1.533 nγ = 1.535
2V:
Measured: 29° , Calculated: 28°
Max Birefringence:
δ = 0.023
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
strong

Chemical Properties of NyerereiteHide

Formula:
Na2Ca(CO3)2

Crystallography of NyerereiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Cmcm
Cell Parameters:
a = 5.062(1) Å, b = 8.790(1) Å, c = 12.744(1) Å
Ratio:
a:b:c = 0.576 : 1 : 1.45
Unit Cell V:
567.04 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Platy crystals to 0.5 mm.
Twinning:
Always twinned.
Comment:
Incommensurately modulated twin structure (Bolotina et al., 2017): Cmcm(α00)00s with modulation vector q = 0.383a*, with above unit-cell parameters. Originally assumed to have Cmc21.

Type Occurrence of NyerereiteHide

Synonyms of NyerereiteHide

Other Language Names for NyerereiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Gregoryite5 photos of Nyerereite associated with Gregoryite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

5.AC.05EiteliteNa2Mg(CO3)2Trig.
5.AC.10ZemkoriteNa2Ca(CO3)2Hex.
5.AC.15BütschliiteK2Ca(CO3)2Trig. 3m (3 2/m) : R3m
5.AC.20FairchilditeK2Ca(CO3)2Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
5.AC.25ShortiteNa2Ca2(CO3)3Orth. mm2 : Amm2
5.AC.30Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5Hex. 6mm : P63mc
5.AC.30CalcioburbankiteNa3(Ca,REE,Sr)3(CO3)5Hex. 6mm : P63mc
5.AC.30Khanneshite(Na,Ca)3(Ba,Sr,Ce,Ca)3(CO3)5Hex.
5.AC.30SanromániteNa2CaPb3[CO3]5Hex. 6mm : P63mc

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

11.1.1ZabuyeliteLi2CO3Mon. 2/m : B2/b
11.1.2NatriteNa2CO3Mon.
11.1.3NahcoliteNaHCO3Mon. 2/m
11.1.4WegscheideriteNa5H3(CO3)4Tric. 1 : P1
11.1.5ThermonatriteNa2CO3 · H2OOrth. mmm (2/m 2/m 2/m) : Pmmm
11.1.6TronaNa3H(CO3)2 · 2H2OMon. 2/m
11.1.7NatronNa2CO3 · 10H2OMon. 2/m : P2/m
11.1.8KaliciniteKHCO3Mon. 2/m
11.1.9ShortiteNa2Ca2(CO3)3Orth. mm2 : Amm2
11.1.11NatrofairchilditeNa2Ca(CO3)2Orth.
11.1.12ZemkoriteNa2Ca(CO3)2Hex.
11.1.13PirssoniteNa2Ca(CO3)2 · 2H2OOrth. mm2 : Fdd2
11.1.14GaylussiteNa2Ca(CO3)2 · 5H2OMon. 2/m : B2/b
11.1.15BaylissiteK2Mg(CO3)2 · 4H2OMon.
11.1.16FairchilditeK2Ca(CO3)2Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
11.1.17BütschliiteK2Ca(CO3)2Trig. 3m (3 2/m) : R3m
11.1.18Teschemacherite(NH4)HCO3Orth. mmm (2/m 2/m 2/m) : Pccn

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.

Nyerereite in petrologyHide

An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.

References for NyerereiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Dawson, J.B. (1962) Sodium carbonate lavas from Oldoinyo Lengai, Tanganyika. Nature: 195: 1075–1076.
Milton, C. (1968) The "natro-carbonatite lava" of Oldionyo Lengai, Tanzania. Geological Society of America, Abstracts Annual Meetings 1968: 202-202. (abstract)
Fleischer, M., Chao, G.Y., Kato, A. (1975) New mineral names. American Mineralogist: 60: 485-489.
McKie, D., Frankis, E.J. (1977) Nyerereite: A new volcanic carbonate mineral from Oldoinyo Lengai, Tanzania. Zeitschrift für Kristallographie: 145: 73-95.
Fleischer, M., Cabri, L.J. (1978) New mineral names. American Mineralogist: 63: 598-600.
Peterson, T.D. (1990) Petrology and genesis of natrocarbonatite. Contributions to Mineralogy and Petrology: 105: 143-155.
Shatskiy, A., Gavryushkin, P.N., Litasov, K.D., Koroleva, O.N., Kupriyanov, I.N., Borzdov, Y.M., Sharygin, I.S., Funakoshi, K., Palyanov, Y.N., Ohtani, E. (2015) Na-Ca carbonates synthesized under upper-mantle conditions: Raman spectroscopic and X-ray diffraction studies. European Journal of Mineralogy: 27: 175-184.
N. B. Bolotina, P. N. Gavryushkin, A. V. Korsakov, S. V. Rashchenko, Y. V. Seryotkin, A. V. Golovin, B. N. Moine, A. N. Zaitsev and K. D. Litasov (2017): Incommensurately modulated twin structure of nyerereite Na1.64K0.36Ca(CO3)2. Acta Crystallogr. B73, 276-284.

Internet Links for NyerereiteHide

Localities for NyerereiteHide

ⓘ - 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.
Brazil
 
  • Mato Grosso
    • Juína
      • Sorriso river
Kaminsky, F. V., Ryabchikov, I. D., & Wirth, R. (2015). A primary natrocarbonatitic association in the Deep Earth. Mineralogy and Petrology, 1-12.
Canada
 
  • Québec
    • Laurentides
      • Deux-Montagnes RCM
        • Oka
Chen, W., Kamenetsky, V. S., & Simonetti, A. (2013). Evidence for the alkaline nature of parental carbonatite melts at Oka complex in Canada. Nature communications, 4, ncomms3687.
Germany
 
  • Rhineland-Palatinate
    • Ahrweiler
      • Lahn valley
        • Bad Ems District
          • Braubach
Schnorrer-Köhler, G. & David, W. (1991): Die Blei- und Silberhütte Braubach und ihre Haldenminerale. Lapis, 16 (1), 38-49; 58 (in German).
Lapis, 16 (1), 38-53+58.
Italy
 
  • Basilicata
    • Potenza Province
Stoppa, F., Jones, A.P., Sharygin, V.V. (2009): Nyerereite from carbonatite rocks at Vulture volcano: implications for mantle metasomatism and petrogenesis of alkali carbonate melts. Central European Journal of Geosciences, 1, 131-151
        • Melfi
Stoppa, F., Jones, A.P., and Sharygin, V.V. (2009): Central European Journal of Geosciences 1(2), 131-151
Kenya
 
  • Nandi County
A. N. Zaitsev, T. Wenzel, T. Vennemann and G. Markl (2013): Tinderet volcano, Kenya: an altered natrocarbonatite locality? Mineralogical Magazine 77, 213-226.
Russia
 
  • Krasnoyarsk Krai
    • Maimecha and Kotui Rivers Basin
Henderson, C. M. B., Kogarko, L. N., & Plant, D. A. (1999). Extreme closed system fractionation of volatile-rich, ultrabasic peralkaline melt inclusions and the occurrence of djerfisherite in the Kugda alkaline complex, Siberia. Mineralogical Magazine, 63(3), 433-438.
Henderson, C. M. B., Kogarko, L. N., & Plant, D. A. (1999). Extreme closed system fractionation of volatile-rich, ultrabasic peralkaline melt inclusions and the occurrence of djerfisherite in the Kugda alkaline complex, Siberia. Mineralogical Magazine, 63(3), 433-438.
  • Murmanskaya Oblast'
Potter, N. J., Kamenetsky, V. S., Chakhmouradian, A. R., & Goemann, K. (2017) Inclusions in perovskite-magnetite-silicate rocks from Afrikanda, Russia: Clues to the early history of carbonatites?. 11th International Kimberlite Conference
Mikhailova, J. A., Kalashnikov, A. O., Sokharev, V. A., Pakhomovsky, Y. A., Konopleva, N. G., Yakovenchuk, V. N., ... & Ivanyuk, G. Y. (2016). 3D mineralogical mapping of the Kovdor phoscorite–carbonatite complex (Russia). Mineralium Deposita, 51(1), 131-149.
Mikhailova, J. A., Kalashnikov, A. O., Sokharev, V. A., Pakhomovsky, Y. A., Konopleva, N. G., Yakovenchuk, V. N., ... & Ivanyuk, G. Y. (2016). 3D mineralogical mapping of the Kovdor phoscorite–carbonatite complex (Russia). Mineralium Deposita, 51(1), 131-149.
    • Northern Karelia
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
  • Sakha Republic (Yakutia)
    • Daldyn-Alakit kimberlite field
      • Daldyn
Sharygin, I. S., Golovin, A. V., Korsakov, A. V., & Pokhilenko, N. P. (2013). Eitelite in sheared peridotite xenoliths from Udachnaya-East kimberlite pipe (Russia)–a new locality and host rock type. European Journal of Mineralogy, 25(5), 825-834.; Sharygin, V. V., Kamenetsky, V. S., Kamenetskaya, M. B., Seretkin, Y. V., & Pokhilenko, N. P. (2007, August). Rasvumite from the Udachnaya-East Pipe: The first finding in kimberlites. In Doklady Earth Sciences (Vol. 415, No. 2, pp. 929-934). Nauka/Interperiodica.
South Africa
 
  • Northern Cape Province
    • Francis Baard District
      • Kimberley
        • KEM JV Mine (Kimberley Ekapa Mining Joint Venture mine; Kimberley Underground mine)
Giuliani, A., Kamenetsky, V. S., Phillips, D., Kendrick, M. A., Wyatt, B. A., & Goemann, K. (2012). Nature of alkali-carbonate fluids in the sub-continental lithospheric mantle. Geology, 40(11), 967-970.
Tanzania
 
  • Arusha Region
Zaitsev A.N., Wenzel T., Markl G., Spratt J., Petrov S.V., Williams, C.T. (2010) Mineralogy and geochemistry of nephelinites and phonolites from the Sadiman volcano, northern Tanzania. Abstracts of XXVII International conference School «Geochemistry of Alkaline rocks». – Moscow-Koktebel’. pp. 240 pp.
McKie, D., Frankis, E.J. (1977) Nyerereite: A new volcanic carbonate mineral from Oldoinyo Lengai, Tanzania. Zeitschrift für Kristallographie: 145: 73-95.; Geol.Soc.Amer.,Progr. Annual. Meet.(1968) 202; Mineralogical Magazine 1997 61 : 779-789; Zaitsev, A. N., & Keller, J. (2006). Mineralogical and chemical transformation of Oldoinyo Lengai natrocarbonatites, Tanzania. Lithos, 91(1), 191-207.; Mattsson, H. B., & Reusser, E. (2010). Mineralogical and geochemical characterization of ashes from an early phase of the explosive September 2007 eruption of Oldoinyo Lengai (Tanzania). Journal of African Earth Sciences, 58(5), 752-763.; Victoria Sekisova, Victor Victorovich Sharygin, A. N. Zaitsev, Stanislav Strekopytov (2015) Liquid Immiscibility Геология и геофизика, 2015, т. 56, № 12, с. 2173—2197
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