Theoparacelsite Mineral Data

Theoparacelsite Mineral Data
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General Theoparacelsite Information

Help on Chemical Formula: Chemical Formula: Cu3(OH)2(As2O7)
Help on Composition: Composition: Molecular Weight = 486.49 gm
   Copper    39.19 %  Cu   44.12 % Cu2O
   Arsenic   30.80 %  As   47.24 % As2O5
   Hydrogen   0.41 %  H     3.70 % H2O
   Oxygen    29.60 %  O
            ______        ______ 
            100.00 %       95.07 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu3(OH)2(As2O7)
Help on Environment: Environment: Included in cuprite and pseudomorphous after olivinite. Related to olivenite
Help on IMA Status: IMA Status: Approved IMA 1998 (Dana # Added)
Help on Locality: Locality: Roua copper occurrences, Var valley, Alpes-Martimes area, France. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the Swiss scientist Paracelse (1493-1541), who was Philippus Theophrastus van Hohenheim. Paracelse is a Greek-Roman translation of Hohenheim.
Help on Synonym: Synonym: IMA1998-012
 

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Theoparacelsite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =2.8325:1:1.5877
Help on Cell Dimensions: Cell Dimensions: a = 8.3212, b = 2.9377, c = 4.6644, Z = 0.66666; V = 114.02 Den(Calc)= 4.72
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pmma
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.104(1)(201), 2.486(0.7)(011), 1.672(0.3)(212),1.33(0.25)(601,221), 1.596(0.25)(411), 2.4(0.25)(210),
Click Here for Large Theoparacelsite Structure Window Crystal Structure:

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Sarp H , Cerny R , Archives des Sciences, Geneve , 54 (2001) p.7-14, Theoparacelsite, Cu3(OH)2As2O7, a new mineral:, its description and crystal structure, Locality: near Nice, France

 

Physical Properties of Theoparacelsite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Dark pistachio green.
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Anhedral Grains - Granular minerals without the expression of crystal shapes
Help on Habit: Habit: Pseudomorphous - Occurs in the form of another mineral.
Help on Habit: Habit: Pulverulent - Forms a loose, poorly-coherent powdery mass.
Help on Luster: Luster: Vitreous - Adamantine
Help on Streak: Streak: yellowish green
 

Optical Properties of Theoparacelsite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.086 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1758,KC= 0.1924
Ncalc = 1.91
Help on Optical Data: Optical Data: Biaxial (+), a=1.81, b=1.82, g=1.86, bire=0.0500, 2V(Calc)=56, 2V(Meas)=57. Dispersion r > v marked.
 

Calculated Properties of Theoparacelsite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.40 gm/cc
note: Specific Gravity of Theoparacelsite =4.72 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0001426947
Boson Index = 0.9998573053
Help on Photoelectric: Photoelectric: PETheoparacelsite = 39.05 barns/electron
U=PETheoparacelsite x rElectron Density= 172.01 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Theoparacelsite is Not Radioactive
 

Theoparacelsite Classification
Help on Dana Class: Dana Class: 41.03.02.02 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.03)where (A B)3 (XO4) Zq
  (41.03.02)Dana Group
 
41.03.02.01 Cornetite Cu3(PO4)(OH)3 P bca 2/m 2/m 2/m
 
41.03.02.02 Theoparacelsite! Cu3(OH)2(As2O7) Pmma 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: 08.BB.65 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BB -With only medium-sized cations, (OH, etc.):RO4 £ 1:1
 
08.BB.65 Theoparacelsite! Cu3(OH)2(As2O7) Pmma 2/m 2/m 2/m
 

Other Theoparacelsite Information
Help on References: References: NAME( AmMin, Vol 87, p 356) PHYS. PROP.(AmMin, Vol 87, p 356) OPTIC PROP.(AmMin, Vol 87, p 356)
Help on See Also: See Also: Links to other databases for Theoparacelsite :
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

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

Theoparacelsite

Cu3(OH)2(As2O7)
Dana No: 41.03.02.02 Strunz No: 08.BB.65
Locality:

 

Notes: