Srebrodolskite Mineral Data + Say SREBRODOLSKITE

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General Srebrodolskite Information

Help on Chemical  Formula: Chemical Formula: Ca2Fe+++2O5
Help on Composition: Composition: Molecular Weight = 271.85 gm
   Calcium  29.49 %  Ca   41.26 % CaO
   Iron     41.09 %  Fe   58.74 % Fe2O3
   Oxygen   29.43 %  O
           ______        ______ 
           100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2Fe3+2O5
Help on IMA Status: IMA Status: Approved IMA 1985
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Synonym: Synonym: ICSD 14296
  PDF 47-1744
 

Srebrodolskite Image

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Srebrodolskite   Periclase

Comments: Black grains of srebrodolskite with white periclase.
Location: Ronneburg U deposit, Gera district, Thuringia, Germany. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Srebrodolskite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.3674:1:0.3792
Help on Cell Dimensions: Cell Dimensions: a = 5.42, b = 14.752, c = 5.594, Z = 4; V = 447.27 Den(Calc)= 4.04
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): 2.676(1), 3.69(1), 7.381(1),
 

Physical Properties of Srebrodolskite

Help on Color: Color: Brown red, Black.
Help on Density: Density: 4.04
Help on Diaphaniety: Diaphaniety: Subtranslucent
Help on Hardness: Hardness: 5.5 - Knife Blade
Help on Luster: Luster: Adamantine - Metallic
 

Optical Properties of Srebrodolskite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.142 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.142 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.3102,KPDmeas= 0.3102,KC= 0.2717
Help on Optical Data: Optical Data: Biaxial (-), a=2.24, b=2.25, g=2.27, bire=0.0300
 

Calculated Properties of Srebrodolskite

Help on Electron Density: Electron Density:

relectron=3.92 gm/cc
note: rSrebrodolskite =4.04 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00924
Boson Index = 0.99076
Help on Photoelectric: Photoelectric:

PESrebrodolskite = 16.02 barns/electron
U=PESrebrodolskite x relectron= 62.84 barns/cc.

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

Srebrodolskite is Not Radioactive

 

Srebrodolskite Classification

Help on  Dana Class: Dana Class: 7.11.2.2 (7)Multiple Oxides
  (7.11)as titano-oxides with [4] and [6] substitutions
  (7.11.2)Dana Group
 
7.11.2.1 Brownmillerite Ca2(Al,Fe)2O5 Ibmm 2/m 2/m 2/m
 
7.11.2.2 Srebrodolskite Ca2Fe2O5 P nma 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: IV/A.07-20 IV - Oxides
  IV/A - Oxides with metal : oxygen = 1:1 and 2:1 (M2O,MO)
  IV/A.07 - Periclase Group, Brownmillerite - Mayenite series
 
IV/A.07-10 Brownmillerite Ca2(Al,Fe)2O5 Ibmm 2/m 2/m 2/m
 
IV/A.07-20 Srebrodolskite Ca2Fe2O5 P nma 2/m 2/m 2/m
 
IV/A.07-30 Mayenite Ca12Al14O33 I 43d 4 3m
 

Other Srebrodolskite Information

Help on References: References: 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 Srebrodolskite :
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 -École des Mines de Paris

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

Srebrodolskite

Ca2Fe+++2O5
Dana No: 7.11.2.2 Strunz No: IV/A.07-20
Locality:

 

Notes:

 

 
   
 
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