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General Qitianlingite Information |
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 Chemical Formula: |
Fe++2Nb2W++++++O10 | ||
| Composition: |
Molecular Weight = 641.35 gm | ||
| Niobium 28.97 % Nb 41.45 % Nb2O5 | |||
| Iron 17.42 % Fe 22.40 % FeO | |||
| Tungsten 28.67 % W 36.15 % WO3 | |||
| Oxygen 24.95 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Fe2+2Nb2WO10 | ||
| Environment: |
Pegmatite dike in granite. | ||
| IMA Status: |
Approved IMA 1985 | ||
| Locality: |
Qitianling, Hunan Province, China. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for the locality. | ||
| Name Pronunciation: |
Qitianlingite + Pronunciation  |
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| Synonym: |
ICSD 65617 | ||
| PDF 41-1415 | |||
Search for Qitianlingite Images | |||
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Images:
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Qitianlingite Crystallography |
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| Axial Ratios: |
a:b:c =4.1422:1:0.8815 | ||
| Cell Dimensions: |
a = 23.706, b = 5.723, c = 5.045, Z = 4; V = 684.45 Den(Calc)= 6.22 | ||
| Crystal System: |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: P bcn | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.96(1), 1.773(0.8), 3.65(0.7), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Qitianlingite |
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| Color: |
Black. | ||
| Density: |
6.42 | ||
| Diaphaneity: |
Opaque | ||
| Hardness: |
5.5 - Knife Blade | ||
| Luster: |
Sub Metallic | ||
Optical Properties of Qitianlingite |
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| Optical Data: |
NCalc= 2.34 - from Gladstone-Dale relationship (KC = 0.215) where Ncalc=Dcalc*KC+1 NCalc= 2.38 - from Gladstone-Dale relationship (KC = 0.215) where Ncalc=Dmeas*KC+1 |
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Calculated Properties of Qitianlingite |
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| Electron Density: |
Bulk Density (Electron Density)=5.59 gm/cc note: Specific Gravity of Qitianlingite =6.22 gm/cc. |
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| Fermion Index: |
Fermion Index = 0.04 Boson Index = 0.96 |
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| Photoelectric: |
PEQitianlingite = 395.63 barns/electron U=PEQitianlingite x rElectron Density=2,210.05 barns/cc. |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Qitianlingite is Not Radioactive |
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Qitianlingite Classification |
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| Dana Class: |
08.01.12.01 (08)Multiple Oxides with Nb, Ta, and Ti | ||
| (08.01)where A BO4 | |||
| (08.01.12)Dana Group | |||
| Strunz Class: |
04.DB.35 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate | ||
| 04.D - Metal:Oxygen = 1:2 and similar | |||
| 04.DB -With medium-sized cations; chains of edge-sharing octahedra | |||
Other Qitianlingite Information |
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| References: |
NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Qitianlingite : 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 Search for Qitianlingite using: Visit our Advertisers for Qitianlingite : A Bijoux Google Search for QitianlingiteAdam's Minerals Google Search for Qitianlingite Cape Minerals Google Search for Qitianlingite Dakota Matrix Minerals Google Search for Qitianlingite Excalibur Mineral Corp. Google Search for Qitianlingite Exceptional Minerals Google Search for Qitianlingite John Betts Fine Minerals Search for Qitianlingite McDougall Minerals Google Search for Qitianlingite Mineral News Website Link Rock and Mineral Shows Google Search for Qitianlingite Weinrich Minerals, Inc. Google Search for Qitianlingite Ask about Qitianlingite here : Print or Cut-and-Paste your Qitianlingite Specimen Label here :
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