Mineralogy Database

Likasite Mineral Data

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General Likasite Information

Help on Chemical  Formula: Chemical Formula: Cu3(NO3)(OH)5•2(H2O)
Help on Composition: Composition: Molecular Weight = 373.71 gm
   Copper    51.01 %  Cu   63.86 % CuO
   Hydrogen   2.43 %  H    21.69 % H2O
   Nitrogen   3.75 %  N    14.45 % N2O5
   Oxygen    42.81 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu3(NO3)(OH)5•2(H2O)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1955
Help on Locality: Locality: Likasi mine, Shaba, Zaire. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Likasite Say LIKASITE
Help on Synonym: Synonym: ICSD 30997
  PDF 33-479

Likasite Image

Click Here for Larger   Image in a New Browser Window Images:
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Comments: Blue likasite encrustation.
Location: Dzhezkazgan (Zhezkazgan) Mine, Jezkazgan Oblast', Kazakhstan. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Likasite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.8609:1:3.2043
Help on Cell Dimensions: Cell Dimensions: a = 5.828, b = 6.769, c = 21.69, Z = 4; V = 855.66 Den(Calc)= 2.90
Help on Crystal System: Crystal System: Orthorhombic - Pyramidal H-M Symbol (mm2) Space Group: Pc21n

Physical Properties of Likasite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Blue.
Help on Density: Density: 2.96 - 2.98, Average = 2.97
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Streak: Streak: light blue

Optical Properties of Likasite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.007 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.032 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2241,KPDmeas= 0.2189,KC= 0.2173
Ncalc = 1.63 - 1.65
Help on Optical Data: Optical Data: Biaxial (-), a=1.615, g=1.685, bire=0.0700
Help on Pleochroism (x): Pleochroism (x): blue green.
Help on Pleochroism (z): Pleochroism (z): pale blue.

Calculated Properties of Likasite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.91 gm/cc
note: Specific Gravity of Likasite =2.97 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PELikasite = 22.06 barns/electron
U=PELikasite x rElectron Density= 64.18 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Likasite is Not Radioactive

Likasite Classification

Help on  Dana Class: Dana Class: (19)Nitrates - Hydroxyl or Halogen
  (19.01)with miscellaneous formulae
  (19.01.05)Dana Group Likasite Cu3(NO3)(OH)5•2(H2O) Pc21n mm2
Help on  Strunz Class: Strunz Class: 05.ND.05 05 - CARBONATES (NITRATES)
  05.ND -With OH (etc.) and H2O
05.ND.05 Likasite Cu3(NO3)(OH)5•2(H2O) Pc21n mm2

Other Likasite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Likasite :
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.ND.05





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