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Nyerereite

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Formula:
Na
 
2
Ca(CO
 
3
)
 
2
System:OrthorhombicColour:Colourless

Classification of Nyerereite

IMA status:Approved
Strunz 8th edition ID:5/B.05-20
Nickel-Strunz 10th (pending) edition ID:5.AC.10

5 : CARBONATES (NITRATES)
A : Carbonates without additional anions, without H2O
C : Alkali and alkali-earth carbonates
Dana 8th edition ID:14.3.4.1

14 : ANHYDROUS NORMAL CARBONATES
3 : A2B(XO3)2
Hey's CIM Ref.:11.1.10

11 : Carbonates
1 : Carbonates of the alkali metals and ammonium
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Type Occurrence of Nyerereite

Type Locality:Mt Oldoinyo Lengai (Ol Doinyo Lengai), Arusha Region, Tanzania
Year of Discovery:1963

Physical Properties of Nyerereite

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

Crystallography of Nyerereite

Crystal System:Orthorhombic
Class (H-M):mm2 - Pyramidal
Space Group:Cmc21
Cell Parameters:a = 5.04Å, b = 8.8Å, c = 12.74Å
Ratio:a:b:c = 0.573 : 1 : 1.448
Unit Cell Volume:V 565.04 ų (Calculated from Unit Cell)
Z:4
Morphology:Platy crystals to 0.5 mm.
Twinning:Always twinned.

Optical Data of Nyerereite

Type:Biaxial (-)
RI values: nα = 1.511 nβ = 1.533 nγ = 1.535
2V:Measured: 29° , Calculated: 28°
Maximum Birefringence:δ = 0.023

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Dispersion:strong

Chemical Properties of Nyerereite

Formula:
Na
 
2
Ca(CO
 
3
)
 
2
Simplified for copy/paste:Na2Ca(CO3)2
Essential elements:C, Ca, Na, O
All elements listed in formula:C, Ca, Na, O

Relationship of Nyerereite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
5.AC.05Eitelite
Na
 
2
Mg(CO
 
3
)
 
2
5.AC.10Zemkorite
Na
 
2
Ca(CO
 
3
)
 
2
5.AC.15Bütschliite
K
 
2
Ca(CO
 
3
)
 
2
5.AC.20Fairchildite
K
 
2
Ca(CO
 
3
)
 
2
5.AC.25Shortite
Na
 
2
Ca
 
2
(CO
 
3
)
 
3
5.AC.30Burbankite
(Na,Ca)
 
3
(Sr,Ba,Ce)
 
3
(CO
 
3
)
 
5
5.AC.30Calcioburbankite
Na
 
3
(Ca,REE,Sr)
 
3
(CO
 
3
)
 
5
5.AC.30Khanneshite
(Na,Ca)
 
3
(Ba,Sr,Ce,Ca)
 
3
(CO
 
3
)
 
5
5.AC.30Sanrománite
Na
 
2
CaPb
 
3
[CO
 
3
]
 
5
Related Minerals - Hey's Index Grouping:

- +
11.1.1Zabuyelite
Li
 
2
CO
 
3
11.1.2Natrite
Na
 
2
CO
 
3
11.1.3Nahcolite
NaHCO
 
3
11.1.4Wegscheiderite
Na
 
5
H
 
3
(CO
 
3
)
 
4
11.1.5Thermonatrite
Na
 
2
CO
 
3
· H
 
2
O
11.1.6Trona
Na
 
3
H(CO
 
3
)
 
2
· 2H
 
2
O
11.1.7Natron
Na
 
2
CO
 
3
· 10H
 
2
O
11.1.8Kalicinite
KHCO
 
3
11.1.9Shortite
Na
 
2
Ca
 
2
(CO
 
3
)
 
3
11.1.11Natrofairchildite
11.1.12Zemkorite
Na
 
2
Ca(CO
 
3
)
 
2
11.1.13Pirssonite
Na
 
2
Ca(CO
 
3
)
 
2
· 2H
 
2
O
11.1.14Gaylussite
Na
 
2
Ca(CO
 
3
)
 
2
· 5H
 
2
O
11.1.15Baylissite
K
 
2
Mg(CO
 
3
)
 
2
· 4H
 
2
O
11.1.16Fairchildite
K
 
2
Ca(CO
 
3
)
 
2
11.1.17Bütschliite
K
 
2
Ca(CO
 
3
)
 
2
11.1.18Teschemacherite
(NH
 
4
)HCO
 
3

Other Names for Nyerereite

Synonyms:
IMA1963-014Natrofairchildite
Other Languages:
German:Nyerereit
Russian:Ниеререит
Simplified Chinese:尼碳钠钙石
尼雷尔石
Spanish:Nyerereita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Nyerereite

Reference List:

- +
American Mineralogist (1975): 60: 487-488.

Zeitschrift für Kristallographie (1977): 145: 73-95.

American Mineralogist (1978): 63: 600.

Internet Links for Nyerereite

Search Engines:
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  • Look for Nyerereite on Wikipedia
  • Look for Nyerereite on Mineralien Atlas[Link Broken?]
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Nyerereite details from Handbook of Mineralogy (PDF)
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  • Lapis Mineral Magazin
  • Localities for Nyerereite

    The 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. ? 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.
    Germany
     
    • Rhineland-Palatinate
      • 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).
    Italy
     
    • Basilicata
      • Potenza Province
        • Melfi
          • Vulture Mount
    Stoppa, F., Jones, A.P., and Sharygin, V.V. (2009): Central European Journal of Geosciences 1(2), 131-151
    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
    Kenya
     
    A. N. Zaitsev, T. Wenzel, T. Vennemann and G. Markl (2013): Tinderet volcano, Kenya: an altered natrocarbonatite locality? Mineralogical Magazine 77, 213-226.
    Russia
     
    • Eastern-Siberian Region
      • Krasnoyarsk Territory (Krasnoyarsk Kray; Krasnoyarskii 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.
    • Northern Region
      • Murmanskaja Oblast'
        • Northern Karelia
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    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.
    Geol.Soc.Amer.,Progr. Annual. Meet.(1968) 202; Mineralogical Magazine 1997 61 : 779-789
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