Radovanite Mineral Data

Radovanite Mineral Data
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General Radovanite Information

Help on Chemical Formula: Chemical Formula: Cu2Fe+++(AsO4)[As+++O2(OH)2]•H2O
Help on Composition: Composition: Molecular Weight = 575.94 gm
   Iron       8.73 %  Fe   12.48 % Fe2O3
   Copper    20.96 %  Cu   23.60 % Cu2O
   Arsenic   39.03 %  As   34.35 % As2O3 / 19.95 % As2O5
   Hydrogen   0.73 %  H     6.49 % H2O
   Oxygen    30.56 %  O
            ______        ______ 
            100.00 %       96.87 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu1.9Fe3+0.9AsAs2H4.15O11
Help on Environment: Environment: Secondary mineral associated with other arsenates. New-structure type.
Help on IMA Status: IMA Status: Approved IMA 2002 (Dana # Added)
Help on Locality: Locality: Roua copper deposit in the upper part of the Var Valley (Dalius gorge), Alpes-Maritimes, France. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Radovan Cerny (1957-), crystallographer at the University of Geneva, Switzerland.
Help on Synonym: Synonym: IMA2000-001
 

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Radovanite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.7292:1:0.6154
Help on Cell Dimensions: Cell Dimensions: a = 9.585, b = 13.143, c = 8.0884, Z = 4; V = 1,018.94 Den(Calc)= 3.75
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: P nma
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.09(1)(202), 6.179(0.9)(101), 3.241(0.4)(122),2.214(0.25)(251,223), 2.71(0.25)(240,321), 6.88(0.25)(001), 2.551(0.2)(042), 3.871(0.2)(220),
Click Here for Large Radovanite Structure Window Crystal Structure:

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Sarp H , Guenee L , Archives des Sciences, Geneve , 55 (2002) p.47-55, Radovanite, Cu2Fe3+(As5+O4)(As3+O2OH)2H2O, a new mineral: its description, and crystal structure, Locality: Roua, northwestern part of Alpes-Maritimes, France

 

Physical Properties of Radovanite

Help on Cleavage: Cleavage: None
Help on Color: Color: Pistachio green.
Help on Density: Density: 3.9
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: green
 

Optical Properties of Radovanite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.07 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.032 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2222,KPDmeas= 0.2137,KC= 0.2296
Ncalc = 1.86 - 1.9
Help on Optical Data: Optical Data: Biaxial (-), a=1.8, b=1.84, g=1.86, bire=0.0600
 

Calculated Properties of Radovanite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.51 gm/cc
note: Specific Gravity of Radovanite =3.75 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0019978875
Boson Index = 0.9980021125
Help on Photoelectric: Photoelectric: PERadovanite = 39.11 barns/electron
U=PERadovanite x rElectron Density= 137.35 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Radovanite is Not Radioactive
 

Radovanite Classification
Help on Dana Class: Dana Class: 42.02.06.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.02)where (AB)3 (XO4) Zq · x(H2O)
  (42.02.06)Dana Group
 
42.02.06.01 Radovanite! Cu2Fe(AsO4)[AsO2(OH)2]•H2O P nma 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: 08.CB.40 08 - PHOSPHATES, ARSENATES, VANADATES
  08.C - Phosphates without Additional Anions, with H2O
  08.CB -With only medium-sized cations, RO4:H2O = 1:1
 
08.CB.40 Radovanite! Cu2Fe(AsO4)[AsO2(OH)2]•H2O P nma 2/m 2/m 2/m
 

Other Radovanite Information
Help on References: References: NAME( AmMin, v 88, p 1177) PHYS. PROP.(AmMin, v 88, p 1177) OPTIC PROP.(AmMin, v 88, p 1177)
Help on See Also: See Also: Links to other databases for Radovanite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Radovanite

Cu2Fe+++(AsO4)[As+++O2(OH)2]•H2O
Dana No: 42.02.06.01 Strunz No: 08.CB.40
Locality:

 

Notes: