Redledgeite Mineral Data + 
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- 7.9.5.1 Mannardite BaTi6V2O16·(H2O) I 41/a 4/m
- 7.9.5.2 Redledgeite BaTi6Cr2O16·(H2O) I 41/a 4/m
- IV/D.08-10 Manjiroite (Na,K)(Mn,Mn)8O16·n(H2O) I 4/m 4/m
- IV/D.08-20 Cryptomelane K(Mn,Mn)8O16 I2/m 2/m
- IV/D.08-25 Strontiomelane! SrMn6Mn2O16 P 21/m 2/m
- IV/D.08-30 Priderite (K,Ba)(Ti,Fe)8O16 I 4/m 4/m
- IV/D.08-33 Henrymeyerite! BaFeTi7O16 I 4/m 4/m
- IV/D.08-35 Ankangite Ba(Ti,V,Cr)8O16 I 4/m 4/m
- IV/D.08-40 Mannardite BaTi6V2O16·(H2O) I 41/a 4/m
- IV/D.08-50 Redledgeite BaTi6Cr2O16·(H2O) I 41/a 4/m
- IV/D.08-60 Hollandite Ba(Mn,Mn)8O16 I2/m 2/m
- IV/D.08-70 Coronadite Pb(Mn,Mn)8O16 I2/m 2/m
- IV/D.08-80 Cesarolite PbH2Mn3O8 HEX-R Trig
General Redledgeite Information |
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 Chemical Formula: |
BaTi6Cr+++2O16·(H2O) | ||
| 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 | |||
| Empirical Formula: |
BaTi6Cr2O16·(H2O) | ||
| IMA Status: |
Approved IMA 1961 | ||
| Locality: |
Red Ledge mine, south of Washington, Nevada Co., California. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named after it's locality. | ||
| Synonym: |
ICSD 62114 | ||
| PDF 39-352 | |||
Redledgeite Image | |||
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Images:
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Redledgeite Crystallography |
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| Axial Ratios: |
a:c = 1:0.41152 | ||
| Cell Dimensions: |
a = 14.32, c = 5.893, Z = 4; V = 1,208.43 Den(Calc)= 4.41 | ||
| Crystal System: |
Tetragonal - DipyramidalH-M Symbol (4/m) Space Group: I 41/a | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.19(1), 2.22(0.9), 2.46(0.9), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Redledgeite |
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| Cleavage: |
[???] Good | ||
| Color: |
Yellow green, Black. | ||
| Density: |
3.72 | ||
| Diaphaniety: |
Opaque | ||
| Hardness: |
6-7 - Orthoclase-Quartz | ||
| Luster: |
Adamantine | ||
| Streak: |
gray white | ||
Optical Properties of Redledgeite |
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| 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 |
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Calculated Properties of Redledgeite |
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| Electron Density: |
relectron=4.11 gm/cc |
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| Fermion Index |
Fermion Index = 0.08924 Boson Index = 0.91076 |
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| Photoelectric: |
PERedledgeite = 82.73 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Redledgeite is Not Radioactive |
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Redledgeite Classification |
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| Dana Class: |
7.9.5.2 (7)Multiple Oxides | ||
| (7.9)where A B (O)2 | |||
| (7.9.5)Dana Group | |||
| Strunz Class: |
IV/D.08-50 IV - Oxides | ||
| IV/D - Oxides with metal : oxygen = 1:2 (MO2 and related compounds) | |||
| IV/D.08 - Cryptomelane group | |||
Other Redledgeite Information |
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| References: |
NAME( MinRec) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Redledgeite : 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 Search for Redledgeite using: Visit our Advertisers for Redledgeite : Translate Redledgeite Mineral Data : Ask about Redledgeite here : Print or Cut-and-Paste your Redledgeite Specimen Label here :
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