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Nitromagnesite

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Formula:
Mg(NO3)2 · 6H2O
System:
Monoclinic
Colour:
Colourless to white
Lustre:
Vitreous
Name:
In allusion to the composition, being a NITRate of MAGNESIum.
This page provides mineralogical data about Nitromagnesite.


Classification of Nitromagnesite

Approved, 'Grandfathered' (first described prior to 1959)
5.NC.05

5 : CARBONATES (NITRATES)
N : NITRATES
C : With H2O
Dana 7th ed.:
18.2.3.1
18.2.3.1

18 : NORMAL NITRATES
2 : A(XO3)2·xH2O, where x can equal zero
13.4

13 : Nitrates

Physical Properties of Nitromagnesite

Vitreous
Diaphaneity (Transparency):
Transparent
Colour:
Colourless to white
Cleavage:
Perfect
On {110}.
Density:
1.46 g/cm3 (Measured)    

Optical Data of Nitromagnesite

Type:
Biaxial (-)
RI values:
nα = 1.340 nβ = 1.506 nγ = 1.506
2V:
Measured: 4° to 6°
Max Birefringence:
δ = 0.166
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
none

Chemical Properties of Nitromagnesite

Formula:
Mg(NO3)2 · 6H2O
Elements listed in formula:

Crystallography of Nitromagnesite

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 6.19 Å, b = 12.71 Å, c = 6.6 Å
β = 93°
Ratio:
a:b:c = 0.487 : 1 : 0.519
Unit Cell Volume:
V 518.54 ų (Calculated from Unit Cell)
Morphology:
Flocculent to earthy efflorescences. Artificial crystals long prismatic [001] with {001} and {110} dominant.

Type Occurrence of Nitromagnesite

Relationship of Nitromagnesite to other Species

13.1NitratineNaNO3
13.2NiterKNO3
13.3GerhardtiteCu2NO3(OH)3
13.5NitrocalciteCa(NO3)2 · 4H2O
13.6NitrobariteBa(NO3)2
13.7ButtgenbachiteCu36(NO3)2Cl6(OH)64 · nH2O
13.8SveiteKAl7(NO3)4(OH)16Cl2 · 8H2O
13.9DarapskiteNa3(SO4)(NO3) · H2O
13.10HumberstoniteK3Na7Mg2(SO4)6(NO3)2 · 6H2O
13.11Mbobomkulite(Ni,Cu)Al4(NO3,SO4)2(OH)12 · 3H2O
13.12Hydrombobomkulite(Ni,Cu)Al4(NO3)2(SO4)(OH)12 · 14H2O
13.13Nickelalumite(Ni,Cu)Al4(SO4,(NO3)2)(OH)12 · 3H2O

Other Names for Nitromagnesite

Other Information

Thermal Behaviour:
Melting Point = 90°.
Other Information:
Readily soluble in water.
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 Nitromagnesite

Reference List:
Naumann, C.F. (1828) Lehrbuch der Mineralogie, Berlin: 263 (as Magnesiasalpeter).

Beudant, F.S. (1832), Trailé élémentaire de Minéralogie, second edition, 2 volumes: 2: 384 (as Nitrate de magnésie)

Shepard C.U. (1832) Treatise on Mineralogy. First edition, vol. 2: 85.

Huot, J.J. (1841) Manuel de Minéralogie. 2 volumes, Paris: 2: 431 (as Magnesinitre).

Marignac (1856) Annales des mines: 9: 31.

Ogérien in: Lacroix, A. (1901) Minéralogie de la France et des ses colonies, Paris. 5 volumes: vol. 3: 414 (French localities).

Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 116.

Palache, Charles, Harry Berman & Clifford Frondel (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Seventh edition, Volume II: 307.

Internet Links for Nitromagnesite

mindat.org URL:
https://www.mindat.org/min-2920.html
Please feel free to link to this page.

Localities for Nitromagnesite

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Australia
 
  • Queensland
    • Cloncurry Shire
      • Cloncurry
France
 
  • Bourgogne-Franche-Comté
    • Jura
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: 307.
Italy
 
  • Apulia
    • Bari Province
      • Molfetta
        • Pulo di Molfetta
Zimmerman E.A.G. (1789): Viaggio alla nitriera di Molfetta nella terra di Bari in Puglia. Opuscoli scelti, 12, 289-306. Zimmerman E.A.G. (1789): Voyage à la Nitrière naturelle de Molfetta, dans la Terre de Bari en Pouille. Chez Barrois, Libraire, Paris, 49 pp. (abstract: Journal de Physique, 36 (1790), 109-117). Onac B.P., Forti P. (2011): Minerogenetic mechanisms occurring in the cave environment: an overview. International Journal of Speleology, 40, 2, 79-98.
South Africa
Cairncross, B. and Dixon, R., (1995), Minerals of South Africa.
Ukraine
 
  • Crimea Oblast'
    • Crimea peninsula
      • Bakhchisaray area
        • Skalistoye Village
Dvoichenko P.A. The minerals of Crimea (1914) - Zapiski Krymskogo obshchestva estestvoispytatelei (Proceeding of the Crimea Society of Naturalistes), 1914, vol. 4, p. 1-208 (Rus.) - Popov S.P. Mineralogy of the Crimea (1938). - M.-L., AN SSSR, 1938, 352 p. (Rus.)
USA (TL)
 
  • Tennessee
    • Marion Co.
Acta Cryst. 14 (1961), 1296
  • Virginia
    • Botetourt Co.
Minerals of Virginia 1990 by R. V. Dietrich
Mineral and/or Locality  
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