Redledgeite Mineral Data

Redledgeite Mineral Data
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General Redledgeite Information

Help on Chemical Formula: Chemical Formula: BaTi6Cr+++2O16•(H2O)
Help on Composition: Composition: Molecular Weight = 802.60 gm
   Barium    17.11 %  Ba   19.10 % BaO
   Titanium  35.79 %  Ti   59.71 % TiO2
   Chromium  12.96 %  Cr   18.94 % Cr2O3
   Hydrogen   0.25 %  H     2.24 % H2O
   Oxygen    33.89 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: BaTi6Cr2O16•(H2O)
Help on IMA Status: IMA Status: Approved IMA 1961
Help on Locality: Locality: Red Ledge mine, south of Washington, Nevada Co., California. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after it's locality.
Help on Name Pronunciation: Name Pronunciation: Redledgeite + Pronunciation Say REDLEDGEITE
Help on Synonym: Synonym: ICSD 62114
  PDF 39-352
 

Redledgeite Image

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Redledgeite

Comments: Red Ledge Mine, Washington, Washington District, Nevada Co., California, USA.
Location: Green, massive redledgeite. Scale: Picture size 4.5 mm.
© Thomas Witzke / Abraxas-Verlag

Redledgeite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:0.41152
Help on Cell Dimensions: Cell Dimensions: a = 14.32, c = 5.893, Z = 4; V = 1,208.43 Den(Calc)= 4.41
Help on Crystal System: Crystal System: Tetragonal - DipyramidalH-M Symbol (4/m) Space Group: I 41/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.19(1), 2.22(0.9), 2.46(0.9),
Click Here for Large Redledgeite Structure Window Crystal Structure:

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Foley J A , Hughes J M , Drexler J W , The Canadian Mineralogist , 35 (1997) p.1531-1534, Redledgeite, Bax([Cr,Fe,V]2xTi8-2x)O16, the I4/m structure and elucidation, of the sequence of tunnel Ba cations

 

Physical Properties of Redledgeite

Help on Cleavage: Cleavage: {???} Good
Help on Color: Color: Yellow green, Black.
Help on Density: Density: 3.72
Help on Diaphaneity: Diaphaneity: Opaque
Help on Hardness: Hardness: 6-7 - Orthoclase-Quartz
Help on Luster: Luster: Adamantine
Help on Streak: Streak: gray white
 

Optical Properties of Redledgeite

Help on Optical Data: Optical Data: NCalc= 2.42 - from Gladstone-Dale relationship (KC = 0.3217) where Ncalc=Dcalc*KC+1
NCalc= 2.2 - from Gladstone-Dale relationship (KC = 0.3217) where Ncalc=Dmeas*KC+1
 

Calculated Properties of Redledgeite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.11 gm/cc
note: Specific Gravity of Redledgeite =4.41 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.08
Boson Index = 0.92
Help on Photoelectric: Photoelectric: PERedledgeite = 82.73 barns/electron
U=PERedledgeite x rElectron Density= 340.00 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Redledgeite is Not Radioactive
 

Redledgeite Classification
Help on Dana Class: Dana Class: 07.09.05.02 (07)Multiple Oxides
  (07.09)Dana Type
  (07.09.05)Dana Group
 
07.09.05.01 Mannardite BaTi6V2O16•(H2O) I 41/a 4/m
 
07.09.05.02 Redledgeite BaTi6Cr2O16•(H2O) I 41/a 4/m
Help on Strunz Class: Strunz Class: 04.DK.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.D - Metal:Oxygen = 1:2 and similar
  04.DK -With large (± medium-sized) cations; tunnel structures
 
04.DK.05 Akaganeite Fe(O,OH,Cl) I2/m 2/m
 
04.DK.05 Ankangite Ba(Ti,V,Cr)8O16 I 4/m 4/m
 
04.DK.05 Coronadite Pb(Mn,Mn)8O16 I2/m 2/m
 
04.DK.05 Hollandite Ba(Mn,Mn)8O16 I2/m 2/m
 
04.DK.05 Manjiroite (Na,K)(Mn,Mn)8O16•n(H2O) I 4/m 4/m
 
04.DK.05 Mannardite BaTi6V2O16•(H2O) I 41/a 4/m
 
04.DK.05 Redledgeite BaTi6Cr2O16•(H2O) I 41/a 4/m
 
04.DK.05 Priderite (K,Ba)(Ti,Fe)8O16 I 4/m 4/m
 
04.DK.05 Henrymeyerite! BaFeTi7O16 I 4/m 4/m
 

Other Redledgeite Information
Help on References: References: NAME( MinRec) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Redledgeite :
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
15 - WWW-MINCRYST

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

Redledgeite

BaTi6Cr+++2O16•(H2O)
Dana No: 07.09.05.02 Strunz No: 04.DK.05
Locality:

 

Notes: