Dolerophanite Mineral Data + Say DOLEROPHANITE

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General Dolerophanite Information

Help on Chemical  Formula: Chemical Formula: Cu2(SO4)O
Help on Composition: Composition: Molecular Weight = 239.16 gm
   Copper  53.14 %  Cu   66.52 % CuO
   Sulfur  13.41 %  S    33.48 % SO3
   Oxygen  33.45 %  O
          ______        ______ 
          100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu2(SO4)O
Help on Environment: Environment: Secondary copper mineral in sulfide veins.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1873
Help on Locality: Locality: Vesuvio (Vesuvius), Napoli, Campania, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek "DOLEROS" = misleading and "PHANESTAI" = appearance, in allusion to its low content of copper
 

Dolerophanite Image

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Dolerophanite   Chalcanthite   Fedotovite

Comments: Brown crystals of dolerophanite with blue chalcanthite and green fedotovite.
Location: Great Fissure (Main Fracture) eruption, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Dolerophanite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.4789:1:1.2084
Help on Cell Dimensions: Cell Dimensions: a = 9.335, b = 6.312, c = 7.628, Z = 4; beta = 122.242° V = 380.16 Den(Calc)= 4.18
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.623(1), 6.443(0.5), 2.615(0.4),
Help on Forms: Forms:

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Forms: [ 1 3 3] [ 1 1 0] [ 0 1 0] [ 1 1 1] [ 4 0 3] [ 1 0 0] [ 0 0 1]

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Effenberger H , Monatshefte fur Chemie , 116 (1985) p.927-931, Cu2O(SO4), dolerophanite: Refinement of the crystal structure with, a comparison of [OCu(II)4] tetrahedra in inorganic compounds, Locality: synthetic

 

Physical Properties of Dolerophanite

Help on Cleavage: Cleavage: [101] Perfect
Help on Color: Color: Brown, Black.
Help on Density: Density: 4.17
Help on Diaphaniety: Diaphaniety: Translucent to Opaque
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Sub Metallic
Help on Streak: Streak: yellowish brown
 

Optical Properties of Dolerophanite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.12 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.117 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1926,KPDmeas= 0.193,KC= 0.1723
Help on Optical Data: Optical Data: Biaxial (+), a=1.715, b=1.82, g=1.88, bire=0.1650, 2V(Calc)=70, 2V(Meas)=85.
 

Calculated Properties of Dolerophanite

Help on Electron Density: Electron Density:

relectron=3.99 gm/cc
note: rDolerophanite =4.18 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00116
Boson Index = 0.99884
Help on Photoelectric: Photoelectric:

PEDolerophanite = 24.31 barns/electron
U=PEDolerophanite x relectron= 96.87 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Dolerophanite is Not Radioactive

 

Dolerophanite Classification

Help on  Dana Class: Dana Class: 30.2.2.1 (30)Anhydrous Sulfates Containing Hydroxyl or Halogen
  (30.2)where (A B)2 XO4 Zq
  (30.2.2)Dana Group
 
30.2.2.1 Dolerophanite Cu2(SO4)O C 2/m 2/m
Help on  Strunz Class: Strunz Class: VI/B.01-10 VI - Sulfates,Chromates,Molybdates and Tungstates
  VI/B - Waterfree sulfates [SO4]2- with unfamiliar anions. cations of medium size
  VI/B.01 - Brochantite series, Dolerophanite - Brochantite
 
VI/B.01-10 Dolerophanite Cu2(SO4)O C 2/m 2/m
 
VI/B.01-20 Antlerite Cu3(SO4)(OH)4 Pnam 2/m 2/m 2/m
 
VI/B.01-30 Brochantite Cu4(SO4)(OH)6 P 21/a 2/m
 

Other Dolerophanite Information

Help on References: References: NAME( Dana7) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Dolerophanite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

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Dolerophanite

Cu2(SO4)O
Dana No: 30.2.2.1 Strunz No: VI/B.01-10
Locality:

 

Notes:

 

 
   
 
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