Rouaite Mineral Data

Rouaite Mineral Data
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General Rouaite Information

Help on Chemical Formula: Chemical Formula: Cu2(NO3)(OH)3
Help on Composition: Composition: Molecular Weight = 240.12 gm
   Copper    52.93 %  Cu   66.25 % CuO
   Hydrogen   1.26 %  H    11.25 % H2O
   Nitrogen   5.83 %  N    22.49 % N2O5
   Oxygen    39.98 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu2(NO3)(OH)3
Help on Environment: Environment: Secondary mineral formed in mines where Cu can react with nitrates from the organism nitrobactor. Dimorph of gerhardtite
Help on IMA Status: IMA Status: Approved IMA 1999 (Dana # Added)
Help on Locality: Locality: Old copper mines at Roua, Alpes-Maritimes, southeastern France. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Synonym: Synonym: IMA1999-010
 

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Rouaite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.9205:1:1.1391
Help on Cell Dimensions: Cell Dimensions: a = 5.596, b = 6.079, c = 6.925, Z = 2; beta = 94.67° V = 234.79 Den(Calc)= 3.40
Help on Crystal System: Crystal System: Monoclinic - SphenoidalH-M Symbol (2) Space Group: P 21
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 6.91(1)(001), 3.457(0.9)(111,002), 2.462(0.8)(121),2.669(0.8)(120), 2.078(0.5)(122,103), 2.25(0.5)(202), 2.154(0.4)(013),
Click Here for Large Rouaite Structure Window Crystal Structure:

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Effenberger H , Zeitschrift fur Kristallographie , 165 (1983) p.127-135, Verfeinerung der kristallstruktur des monoklinen, dikupfer(II)-trihydroxi-nitrates Cu2(NO3)(OH)3, Locality: synthetic

 

Physical Properties of Rouaite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Dark emerald green.
Help on Density: Density: 3.38
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Splintery - Thin, elongated fractures produced by intersecting good cleavages or partings (e.g. hornblende).
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Equant Grains - Granular material with equel dimensions in x, y, and z.
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: green
 

Optical Properties of Rouaite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.034 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.028 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2111,KPDmeas= 0.2123,KC= 0.2053
Ncalc = 1.69 - 1.7
Help on Optical Data: Optical Data: Biaxial (+), a=1.7, b=1.715, g=1.738, bire=0.0380, 2V(Calc)=80, 2V(Meas)=81. Dispersion r > v strong.
 

Calculated Properties of Rouaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.29 gm/cc
note: Specific Gravity of Rouaite =3.40 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.05
Boson Index = 0.95
Help on Photoelectric: Photoelectric: PERouaite = 23.19 barns/electron
U=PERouaite x rElectron Density= 76.18 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Rouaite is Not Radioactive
 

Rouaite Classification
Help on Dana Class: Dana Class: 19.01.01.02 (19)Nitrates - Hydroxyl or Halogen
  (19.01)with miscellaneous formulae
  (19.01.01)Dana Group
 
19.01.01.01 Gerhardtite Cu2(NO3)(OH)3 P 212121 2 2 2
 
19.01.01.02 Rouaite! Cu2(NO3)(OH)3 P 21 2
Help on Strunz Class: Strunz Class: 05.NB.05 05 - CARBONATES (NITRATES)
  05.N - NITRATES
  05.NB -With OH
 
05.NB.05 Gerhardtite Cu2(NO3)(OH)3 P 212121 2 2 2
 
05.NB.05 Rouaite! Cu2(NO3)(OH)3 P 21 2
 

Other Rouaite Information
Help on References: References: NAME( AmMin, vol 87, p 998) PHYS. PROP.(AmMin, vol 87, p 998) OPTIC PROP.(AmMin, vol 87, p 998)
Help on See Also: See Also: Links to other databases for Rouaite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - Handbook of Mineralogy (MinSocAm)
6 - Handbook of Mineralogy (UofA)
7 - MinDAT
8 - MinMax(Deutsch)
9 - MinMax(English)
10 - Mineralienatlas (Deutsch)
11 - QUT Mineral Atlas
12 - Ruff.Info

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Print or Cut-and-Paste your Rouaite Specimen Label here :

Rouaite

Cu2(NO3)(OH)3
Dana No: 19.01.01.02 Strunz No: 05.NB.05
Locality:

 

Notes: