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Nitratine

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Taltal, Antofagasta Province, Antofagasta Region, Chile
© Thomas Witzke

Formula:
NaNO
 
3
System:TrigonalColour:Colourless, white, ...
Hardness:1½ - 2
Name:In allusion to the composition, being a NITRATe.
Isostructural with:Calcite


Nitratine, sodium nitrate, is found as an efflorescence in hot dry regions.

Classification of Nitratine

IMA status:Approved
Strunz 8th edition ID:5/A.01-10
Nickel-Strunz 10th (pending) edition ID:5.NA.05

5 : CARBONATES (NITRATES)
N : NITRATES
A : Without OH or H2O
Dana 7th edition ID:18.1.1.1
Dana 8th edition ID:18.1.1.1

18 : NORMAL NITRATES
1 : AXO3·xH2O, where x can equal zero
Hey's CIM Ref.:13.1

13 : Nitrates
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Type Occurrence of Nitratine

Type Locality:Tarapacá Region, Chile
Year of Discovery:1821
Associated Minerals at type locality:
PolyhaliteLautariteHaliteGypsumGlauberite
DietzeiteDarapskiteBlöditeAnhydrite

Occurrences of Nitratine

Geological Setting:Surficial deposits in arid regions; efflorescences on soils, or in sheltered environments.

Physical Properties of Nitratine

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Colourless, white, lightly tinted by impurities (red-brown, grey, yellowish); colourless in transmitted light
Hardness (Mohs):1½ - 2
Tenacity:Sectile
Cleavage:Perfect
On {1011} perfect; on {0112} and {0001} reported as imperfect.
Parting:Twin gliding noted with K1 {0112}, K2 {0111}.
Fracture:Conchoidal

Crystallography of Nitratine

Crystal System:Trigonal
Class (H-M):3m (3 2/m) - Hexagonal Scalenohedral
Space Group:R3c (R3 2/c)
Cell Parameters:a = 5.06Å, c = 16.82Å
Ratio:a:c = 1 : 3.324
Unit Cell Volume:V 372.96 ų (Calculated from Unit Cell)
Morphology:Crystals rhombohedral {1011}. Massive granular, incrustations.
Twinning:1. On {0112}, often elongated along the common rhombohedral edge; 2. On {0001}, as penetration twins; 3. On {0221}, as aggregates of three or six individuals at times; 4. On {1011}, rare.

Epitaxial Relationships of Nitratine

Epitaxial Minerals:
MuscoviteDolomiteCalciteBarytocalcite
Epitaxi Comments:Forms overgrowths on calcite quite readily. The crystal axes of the two phases ordinarily parallel. Also oriented growths on the additional species listed.
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Horizontal Axis: ° to ° Vertical Axis: % Source Data: Filtered Data: Peaks:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Nitratine

Type:Uniaxial (-)
RI values: nω = 1.330 - 1.336 nε = 1.580 - 1.587
Maximum Birefringence:δ = 0.250

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

Chemical Properties of Nitratine

Formula:
NaNO
 
3
Essential elements:N, Na, O
All elements listed in formula:N, Na, O

Relationship of Nitratine to other Species

Common Associates:
NitrocalciteNiterMirabiliteHaliteGypsum
Epsomite
Related Minerals - Nickel-Strunz Grouping):
5.NA.10Niter
KNO
 
3
5.NA.15Gwihabaite
(NH
 
4
,K)NO
 
3
5.NA.20Nitrobarite
Ba(NO
 
3
)
 
2
Related Minerals - Hey's Index Grouping:
13.2Niter
KNO
 
3
13.3Gerhardtite
Cu
 
2
[(OH)
 
3
|NO
 
3
]
13.4Nitromagnesite
Mg(NO
 
3
)
 
2
·6H
 
2
O
13.5Nitrocalcite
Ca(NO
 
3
)
 
2
·4H
 
2
O
13.6Nitrobarite
Ba(NO
 
3
)
 
2
13.7Buttgenbachite
Cu
 
19
[(OH)
 
32
|(NO
 
3
)
 
2
|Cl
 
4
] · 2H
 
2
O
13.8Sveite
KAl
 
7
[Cl|(OH)
 
8
|(NO
 
3
)
 
2
]
 
2
 · 8H
 
2
O
13.9Darapskite
Na
 
3
NO
 
3
SO
 
4
·H
 
2
O
13.10Humberstonite
Na
 
7
K
 
3
Mg
 
2
(SO
 
4
)
 
6
(NO
 
3
)
 
2
·6H
 
2
O
13.11Mbobomkulite
(Ni,Cu)Al
 
4
[(OH)
 
12
|{(NO
 
3
)
 
2
,SO
 
4
}] · 3H
 
2
O
13.12Hydrombobomkulite
(Ni,Cu)Al
 
4
[(OH)
 
12
|{(NO
 
3
)
 
2
,SO
 
4
}] · 13-14H
 
2
O
13.13Nickelalumite
(Ni,Cu)Al
 
4
[(OH)
 
12
|{SO
 
4
,(NO
 
3
)
 
2
}] · 3H
 
2
O

Other Names for Nitratine

Synonyms:
Cubic NiterCubic NitreNatronitreNatronitriteNatron-Nitrat
NatronsalpeterNitrate of SodaNitratiteSoda NiterSoda Nitre
French names:
Niter cubiqueSoude nitratée native
German names:
ChilisalpeterNitratinSalpetersaures NatronZootinsalz
Russian names:
Нитратин
Spanish names:
AzufradoCalicheNitroSalitre sodico

Other Information

Magnetism:Diamagnetic
Thermal Behaviour:Melting Point 306.8°C. Thermal conductivity greatest parallel to [0001].
Other Information:Slightly deliquescent. Readily soluble in water.
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 Nitratine

Reference List:M. de Rivero (1821) Annales des mines: 6: 596 (as Soude nitratée native).

Breithaupt, A. (1823) Vollständige Characteristik etc., 1st. ed.: 171 (as Zootinsalz)

Brooke (1823) Annals of Philosophy, London: 21: 452.

Mohs (1824): 2: 671 (as Saltpetersaures Natron).

Leonhard, K.C. (1826) Handbuch der Oryktognosie, second edition, Heidelberg: 246 (as Natronsalpeter).

Naumann, C.F. (1828) Lehrbuch der Mineralogie, Berlin: 262.

Zeitschrift für Kristallographie (1930): 154.

Breithaupt, A. (1832) Vollständige Characteristik etc., 2nd. ed.: 27 (as Natron-Nitrat).

Haidinger, Wm. (1845a) Handbuch der bestimmenden Mineralogie. Vienna: 488 (as Nitratin).

Scrauf (1860) Konigliche Akademie der Wissenschaften, Sitzber., Vienna: 41: 787.

Weisbach, Albin (1875) Synopsis mineralogical, systematische Übersicht des Mineralreiches. 78 pp., Freiberg: 8 (as Natronitrite).

Tschermak (1882) Mineralogische und petrographische Mitteilungen, Vienna: 4: 118.

Wulff (1895) Akademie der Wissenschaften, Berlin (Sitzungsberichte der): 717.

Wulff (1896) Akademie der Wissenschaften, Berlin (Sitzungsberichte der): 137

Mügge (1898) Neues Jahrbuch für Mineralogie, Geologie und Paleontologie, Heidelberg, Stuttgart: I: 123.

Mügge (1902) Centralblatt für Mineralogie, Geologie und Paleontologie, Stuttgart: 355.

Mügge (1903) Jb. Min., Beil.-Bd.: 16: 389.

Barker (1906) Transactions of the Chem. Society, London: 89: 1123.

Kreutz (1909) Mineralogical Magazine: 15: 233.

Haigh (1912) American Chemical Society Journal: 34: 1137.

Doelter, C. (1913) Handbuch der Mineral-chemie (in 4 volumes divided into parts): 3[1]: 264.

Johnsen (1914) Jahrb. Radioakt. Und Elektronik: 11: 246.

Hintze, Carl (1916) Handbuch der Mineralogie. Berlin and Leipzig. 6 volumes: 1 [3A]: 2677.

Singewald and Miller (1916) Economic Geology: 11: 103.

Goldschmidt, V. (1920) Atlas der Krystallformen. 9 volumes, atlas, and text, vol. 6: 78.

Whitehead (1920) Economic Geology: 15: 187.

Wyckoff (1920) Physical Review, a Journal of Experimental and Theoretical Physics: 16: 149.

Stöber (1925) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 61: 315.

Wetzel (1928) Chemie Erde: 3: 385, 411.

Merwin (1930) Int. Crit. Tables: 7: 26.

Settele (1930) Jb Min., Beil.-Bd.: 61: 227.

Mansfield and Boardman (1932) USGS Bulletin 838 (US occurrences).

Heintze (1937) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 97: 241.

Royer (1937) Comptes rendu de l’Académie des sciences de Paris: 205: 1418.

Finch and Whitmore (1939) Transactions of the Faraday Society: 34: 640.

France and Wolfe (1941) Journal of Physical Chemistry: 45: 395 (artif. crystals & impurities).

Willems (1943) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 105: 53.

West (1945) Journal of the Opt. Society of America: 35: 26.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 300-302 (as Soda-Niter).

American Mineralogist (1970): 55: 1500.

Internet Links for Nitratine

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    Localities for Nitratine

    Hide Locality List
    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.
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    (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.
    Bahamas
     
    • San Salvador District
      • San Salvador Island
    		Carb.&Evap. v.16 no.1 (2001)
    Chile
     
    • Antofagasta Region
      • Antofagasta Province
        • Reventon District
          • Paposo
    No reference listed
      • El Loa Province
        • Calama
    		Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 302.
    No reference listed
    http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1998/Cooper_p390-399_98.pdf
    Uwe Kolitsch (SXRD-analysis)
      • Tocopilla Province
    		[AmMIn 85:1843]
    Nat. Bur. Standards Circ. 539/6 (1956), 50
      • Iquique Province
        • Challacollo
    		maurzi
    No reference listed
    Italy
     
    • Emilia-Romagna
      • Parma Province
        • Berceto
          • Corchia mine
    		Adorni F., Guelfi F. (1997) - La miniera di Fe e Cu di Corchia, Berceto, Appennino Parmense. - Riv. Min. It. N 3, 217-250.
    Japan
     
    • Honshu Island
      • Kanto Region
        • Tochigi Prefecture
          • Utsunomiya
    		Akira Kato (1973) Sakurai Koubutsu Hyohon, 35.
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
    		www.koeln.netsurf.de/~w.steffens/khib.htm
    www.koeln.netsurf.de/~w.steffens/lovo.htm
    USA
     
    • Alabama
      • Calhoun Co.
        • Weaver Station
    		Mineralogy of Alabama Geol Surv Ala. Bull 120
      • Morgan Co.
        • Trinity
    		Mineralogy of Alabama Geol Surv Ala. Bull 120
    • Arizona
      • Maricopa Co.
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 314.
      • Mohave Co.
        • Artillery Mts
    		Galbraith, F.W. & Brennan (1959), Minerals of Arizona: 55.
      • Pinal Co.
        • Gila River Indian Reservation
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 314; Wilson, E.D. (1969), Mineral deposits of the Gila River Indian Reservation, AZ, AZ Bur. Mines Bull. 179.
    • California
      • San Bernardino Co.
    		Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 310.
      • Tulare Co.
    		Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 302.
    • Colorado
      • Mesa Co.
    		Minerals of Colorado (1997) E.B. Eckels
    • Idaho
      • Owyhee Co.
    		Ream, Lanny R. (2004) Idaho Minerals, 2nd edition, Revised and Updated; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 302.
    Anderson (1994) Kentucky Geol. Survey Ser. XI Spec. Pub 20
      • Edmondson and Hart Cos.
        • Mammoth Cave National Park
    • Nevada
      • Churchill Co.
        • Lake District
    		Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 302; Nevada Bureau of Mines and Geology Special Publication 31, Minerals of Nevada
      • Clark Co.
        • Charleston District
    		NBMG Spec. Pub. 31 Minerals of Nevada
      • Washoe Co.
        • Leadville District
    		NBMG Spec. Pub. 31 Minerals of Nevada
    • New Mexico
      • Doña Ana Co.
    		Northrop, Minerals of New Mexico, 3rd. rev. ed. (1996)
      • Hidalgo Co.
    		Minerals of New Mexico 3rd ed.
      • Luna Co.
    		Minerals of New Mexico 3rd ed.
    NSS Bull. 43:127-132
    Minerals of New Mexico 3rd ed.
      • Valencia Co.
    		Minerals of New Mexico 3rd ed.
    • Texas
    		American Mineralogist (1926): 11: 189.
    Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 302.
      • Presidio Co.
    		BEG Min Res Circ 73
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