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Natrite

A valid IMA mineral species
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About NatriteHide

Formula:
Na2CO3
Colour:
Colourless, grey-white, yellowish, rose to yellow-orange
Lustre:
Vitreous, Dull
Hardness:
Specific Gravity:
2.54
Crystal System:
Monoclinic
Name:
Named in 1982 by Alexander Petrovich Khomyakov for the chemical composition.
Surficially alters rapidly in air to thermonatrite.


Unique IdentifiersHide

Mindat ID:
2849
Long-form identifier:
mindat:1:1:2849:9
GUID
(UUID V4):
d5c5ff8f-159c-481a-a038-29bcda2a9947

IMA Classification of NatriteHide

Classification of NatriteHide

5.AA.10

5 : CARBONATES (NITRATES)
A : Carbonates without additional anions, without H2O
A : Alkali carbonates
11.1.2

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
NatIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Pronunciation of NatriteHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Physical Properties of NatriteHide

Vitreous, Dull
Transparency:
Transparent
Comment:
Becoming dull on exposure
Colour:
Colourless, grey-white, yellowish, rose to yellow-orange
Streak:
White
Hardness:
3½ on Mohs scale
Hardness:
VHN100=133 - 175 - Vickers
Cleavage:
Perfect
(001) perfect, (100), (110) less perfect
Density:
2.54 g/cm3 (Measured)    2.55 g/cm3 (Calculated)

Optical Data of NatriteHide

Type:
Biaxial (-)
RI values:
nα = 1.410 nβ = 1.535 nγ = 1.543
2V:
Measured: 28° , Calculated: 26°
Max Birefringence:
δ = 0.133
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
r > v
Optical Extinction:
Y ≃ b.

Chemistry of NatriteHide

Mindat Formula:
Na2CO3

Crystallography of NatriteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 8.905(4) Å, b = 5.237(3) Å, c = 6.045(2) Å
β = 101.35°
Ratio:
a:b:c = 1.7 : 1 : 1.154
Unit Cell V:
276.40 ų (Calculated from Unit Cell)
Z:
4
Twinning:
Fine polysynthetic twins

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0005042NatriteArakcheeva A, Bindi L, Pattison P, Meisser N, Chapuis G, Pekov I (2010) The incommensurately modulated structures of natural natrite at 120 and 293 K from synchrotron X-ray data American Mineralogist 95 574-5812010Mt. Koashva, Khibiny massif, Kola peninsula, Russia0120
0005043NatriteArakcheeva A, Bindi L, Pattison P, Meisser N, Chapuis G, Pekov I (2010) The incommensurately modulated structures of natural natrite at 120 and 293 K from synchrotron X-ray data American Mineralogist 95 574-5812010Mt. Koashva, Khibiny massif, Kola peninsula, Russia0293
0005044NatriteArakcheeva A, Bindi L, Pattison P, Meisser N, Chapuis G, Pekov I (2010) The incommensurately modulated structures of natural natrite at 120 and 293 K from synchrotron X-ray data American Mineralogist 95 574-5812010Mt. Koashva, Lovozero massif, Kola peninsula, Russia0293
0009928NatriteDusek M, Chapuis G, Meyer M, Petricek V (2003) Sodium carbonate revisited Acta Crystallographica B59 337-3522003synthetic0295
0009929NatriteDusek M, Chapuis G, Meyer M, Petricek V (2003) Sodium carbonate revisited Acta Crystallographica B59 337-3522003synthetic0110
0014917NatriteZubkova N V, Pushcharovsky D Y, Ivaldi G, Ferraris G, Pekov I V, Chukanov N V (2002) Crystal structure of natrite, gamma-Na2CO3 Neues Jahrbuch fur Mineralogie, Monatshefte 2002 85-962002Mt Koashva, Khibiny alkaline massif, Kola Peninsula, Russia0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.962 Å(100)
2.366 Å(70)
2.545 Å(60)
2.602 Å(40)
2.254 Å(35)
2.175 Å(35)
2.621 Å(30)
Comments:
Mt. Karnasurt, Kola Peninsula, Russia. Data from the type description.

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Near-surface Processes
25 : Evaporites (prebiotic)
High-𝑇 alteration and/or metamorphism
31 : Thermally altered carbonate, phosphate, and iron formations
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks
Stage 7: Great Oxidation Event<2.4
45b : [Other oxidized fumarolic minerals]

Type Occurrence of NatriteHide

General Appearance of Type Material:
Grains and granular masses.
Place of Conservation of Type Material:
Geology Museum, Kola Branch, Academy of Sciences, Apatity, Russia, 5710/1.
Mining Institute, St. Petersburg, Russia, 1200/1.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 82761.
Geological Setting of Type Material:
Alkaline massifs.
Associated Minerals at Type Locality:
Reference:
Khomyakov, A.P. (1982) Natrite, Na2CO3, a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 111(2): 220-225.

Synonyms of NatriteHide

Other Language Names for NatriteHide

German:Natrit
Russian:Натрит
Spanish:Natrita

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Natrite associated with AlexkhomyakoviteK6(Ca2Na)(CO3)5Cl · 6H2O
1 photo of Natrite associated with VilliaumiteNaF
1 photo of Natrite associated with ThermonatriteNa2CO3 · H2O

Related Minerals - Strunz-mindat GroupingHide

5.AA.05ZabuyeliteLi2CO3Mon. 2/m : B2/b
5.AA.10Gregoryite(Na2,K2,Ca)CO3Hex. 6mm : P63mc
5.AA.15NahcoliteNaHCO3Mon. 2/m
5.AA.20KaliciniteKHCO3Mon. 2/m : P21/b
5.AA.25Teschemacherite(NH4)HCO3Orth. mmm (2/m 2/m 2/m) : Pccn
5.AA.30WegscheideriteNa5H3(CO3)4Tric. 1 : P1

Other InformationHide

IR Spectrum:
The infrared spectrum of freshest material showed no bands of molecular water.
Thermal Behaviour:
Thermal analysis of carefully selected material showed a loss in weight over 20-900°C of about 1%.
Notes:
Soluble in H2O, yielding a strongly alkaline solution; surficially alters rapidly in air to thermonatrite.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for NatriteHide

References for NatriteHide

Localities for NatriteHide

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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Antarctica
 
  • Eastern Antarctica
    • Buckley Island quadrangle
Austria
 
  • Carinthia
    • Völkermarkt District
      • Eisenkappel-Vellach
        • Ebriach
  • Salzburg
    • Hallein District
      • Hallein
    • Salzburg
      • Untersberg massif
  • Tyrol
    • Innsbruck-Land District
      • Absam
        • Hall valley
  • Upper Austria
    • Gmunden District
      • Hallstatt
Canada
 
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
Italy
 
  • Campania
    • Naples
      • Somma-Vesuvius Complex
  • Sicily
    • Metropolitan City of Catania
      • Etna Volcanic Complex
Russia
 
  • Arkhangelsk Oblast
    • Zimny Bereg District
      • Zimny Bereg kimberlite field
        • Verkhotina occurrence
  • Kamchatka Krai
    • Milkovsky District
      • Tolbachik Volcanic field
        • Great Fissure eruption (Main Fracture)
  • Murmansk Oblast
    • Khibiny Massif
      • Koashva Mt
      • The Carbonatite Stock in the vicinity of Tul'ilukht Bay
    • Lovozersky District
South Africa
 
  • Northern Cape
    • Frances Baard District Municipality
      • Sol Plaatje Local Municipality
        • Kimberley
          • KEM JV Mine (Kimberley Ekapa Mining Joint Venture mine; Kimberley Underground mine)
USA
 
  • California
    • Inyo County
      • Deep Springs Valley
        • Deep Springs Lake (Deep Springs Playa)
    • Siskiyou County
      • Azalea
        • Box Canyon Dam
 
矿物 and/or 产地  
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