General Rouaite Information Chemical Formula: |
Cu2(NO3)(OH)3 |
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 |
Empirical Formula: |
Cu2(NO3)(OH)3 |
Environment: |
Secondary mineral formed in mines where Cu can react with nitrates from the organism nitrobactor. Dimorph of gerhardtite |
IMA Status: |
Approved IMA 1999 (Dana # Added) |
Locality: |
Old copper mines at Roua, Alpes-Maritimes, southeastern France. Link to MinDat.org Location Data. |
Name Origin: |
Named for the locality. |
Synonym: |
IMA1999-010 |
| | Search for Rouaite Images
Images:
|
|
| | Rouaite Crystallography Axial Ratios: |
a:b:c =0.9205:1:1.1391 |
Cell Dimensions: |
a = 5.596, b = 6.079, c = 6.925, Z = 2; beta = 94.67° V = 234.79 Den(Calc)= 3.40 |
Crystal System: |
Monoclinic - SphenoidalH-M Symbol (2) Space Group: P 21 |
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), |
Crystal Structure:
|
Mouse
|
| Physical Properties of Rouaite Cleavage: |
{001} Perfect |
Color: |
Dark emerald green. |
Density: |
3.38 |
Diaphaneity: |
Transparent |
Fracture: |
Splintery - Thin, elongated fractures produced by intersecting good cleavages or partings (e.g. hornblende). |
Habit: |
Aggregates - Made of numerous individual crystals or clusters. |
Habit: |
Equant Grains - Granular material with equel dimensions in x, y, and z. |
Habit: |
Euhedral Crystals - Occurs as well-formed crystals showing good external form. |
Luster: |
Vitreous (Glassy) |
Streak: |
green |
| Optical Properties of Rouaite 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 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 Electron Density: |
Bulk Density (Electron Density)=3.29 gm/cc |
note: Specific Gravity of Rouaite =3.40 gm/cc. Fermion Index: |
Fermion Index = 0.05 |
Boson Index = 0.95 Photoelectric: |
PERouaite = 23.19 barns/electron |
U=PERouaite x rElectron Density= 76.18 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Rouaite is Not Radioactive | Rouaite Classification Dana Class: |
19.01.01.02 (19)Nitrates - Hydroxyl or Halogen |
|
(19.01)with miscellaneous formulae |
|
(19.01.01)Dana Group |
|
|
Strunz Class: |
05.NB.05 05 - CARBONATES (NITRATES) |
|
05.N - NITRATES |
|
05.NB -With OH |
|
|
| Other Rouaite Information References: |
NAME( AmMin, vol 87, p 998) PHYS. PROP.(AmMin, vol 87, p 998) OPTIC PROP.(AmMin, vol 87, p 998) |
See Also: |
Links to other databases for Rouaite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - GeoScienceWorld 4 - Google Images 5 - Google Scholar 6 - Handbook of Mineralogy (MinSocAm) 7 - Handbook of Mineralogy (UofA) 8 - MinDAT 9 - Mineralienatlas (Deutsch) 10 - Online Mineral Museum 11 - QUT Mineral Atlas 12 - Ruff.Info Search for Rouaite using: Visit our Advertisers for Rouaite : A Bijoux Google Search for RouaiteAdam's Minerals Google Search for Rouaite Cape Minerals Google Search for Rouaite Dakota Matrix Minerals Google Search for Rouaite Excalibur Mineral Corp. Google Search for Rouaite Exceptional Minerals Google Search for Rouaite John Betts Fine Minerals Search for Rouaite McDougall Minerals Google Search for Rouaite Mineral News Website Link Rock and Mineral Shows Google Search for Rouaite Weinrich Minerals, Inc. Google Search for Rouaite Ask about Rouaite here : Print or Cut-and-Paste your Rouaite Specimen Label here :
| |
|
| |