Mineralogy Database

Nitrocalcite Mineral Data

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General Nitrocalcite Information

Help on Chemical  Formula: Chemical Formula: Ca(NO3)2•4(H2O)
Help on Composition: Composition: Molecular Weight = 236.15 gm
   Calcium   16.97 %  Ca   23.75 % CaO
   Hydrogen   3.41 %  H    30.52 % H2O
   Nitrogen  11.86 %  N    45.74 % N2O5
   Oxygen    67.75 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca(NO3)2•4(H2O)
Help on Environment: Environment: Formed in caves and on alkaline soils.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1835
Help on Locality: Locality: Pulo di Molfetta caves, Apulia, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for NITROgen and CALCium in the composition.
Help on Name Pronunciation: Name Pronunciation: Nitrocalcite + Pronunciation Say NITROCALCITE
Help on Synonym: Synonym: ICSD 970
  PDF 26-1406

Nitrocalcite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.5804:1:0.6861
Help on Cell Dimensions: Cell Dimensions: a = 14.477, b = 9.16, c = 6.285, Z = 4; beta = 98.42° V = 824.47 Den(Calc)= 1.90
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/n
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 5.14(1), 3.58(0.7), 7.72(0.7),

Physical Properties of Nitrocalcite

Help on Cleavage: Cleavage: {???} Perfect
Help on Color: Color: Gray, Gray white, White.
Help on Density: Density: 1.9
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Hardness: Hardness: 1-2 - Between Talc and Gypsum
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: white

Optical Properties of Nitrocalcite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.026 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.026 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2574,KPDmeas= 0.2574,KC= 0.2643
Ncalc = 1.5
Help on Optical Data: Optical Data: Biaxial (-), a=1.465, b=1.498, g=1.504, bire=0.0390

Calculated Properties of Nitrocalcite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.96 gm/cc
note: Specific Gravity of Nitrocalcite =1.90 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.11
Boson Index = 0.89
Help on Photoelectric: Photoelectric: PENitrocalcite = 2.30 barns/electron
U=PENitrocalcite x rElectron Density= 4.52 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Nitrocalcite is Not Radioactive

Nitrocalcite Classification

Help on  Dana Class: Dana Class: (18)Simple Nitrates
  (18.02)where A (NO3)2 � x(H2O), x can equal zero
  (18.02.02)Dana Group Nitrocalcite Ca(NO3)2•4(H2O) P 21/n 2/m
Help on  Strunz Class: Strunz Class: 05.NC.10 05 - CARBONATES (NITRATES)
  05.NC -With H2O
05.NC.10 Nitrocalcite Ca(NO3)2•4(H2O) P 21/n 2/m

Other Nitrocalcite Information

Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Nitrocalcite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 05.NC.10





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