General Chiluite Information Chemical Formula: |
Bi6Te++++++2Mo++++++2O21 |
Composition: |
Molecular Weight = 2,036.95 gm |
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Bismuth 61.56 % Bi 68.63 % Bi2O3 |
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Tellurium 12.53 % Te 15.67 % TeO2 |
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Molybdenum 9.42 % Mo 14.13 % MoO3 |
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Oxygen 16.49 % O |
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______ ______ |
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100.00 % 98.43 % = TOTAL OXIDE |
Empirical Formula: |
Bi6Te2Mo2O21 |
Environment: |
Molybdenite deposit. |
IMA Status: |
Approved IMA 1989 |
Locality: |
Chilu, Fujian, China. Link to MinDat.org Location Data. |
Name Origin: |
Named after the locality. |
Synonym: |
Chilunite |
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Images:
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| | Chiluite Crystallography Axial Ratios: |
a:c = 1:1.36086 |
Cell Dimensions: |
a = 8.97, c = 12.207, Z = 1; V = 850.60 Den(Calc)= 3.98 |
Crystal System: |
HexagonalSpace Group: P 6322, P 63/m, P 63 |
X Ray Diffraction: |
By Intensity(I/Io): 3.3(1), 3.05(0.9), 2.51(0.5), |
| Physical Properties of Chiluite Color: |
Yellow. |
Density: |
3.65 |
Diaphaneity: |
Semitransparent |
Habit: |
Anhedral Grains - Granular minerals without the expression of crystal shapes |
Habit: |
Hexagonal - Six-sided crystal shape in cross-section or habit. |
Habit: |
Plumose - "Mica-like" minerals forming aggregates of plume-like forms. |
Hardness: |
3 - Calcite |
Luster: |
Sub Metallic |
| Optical Properties of Chiluite Gladstone-Dale: |
CI meas= -1.176 (Poor) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.995 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.3392,KPDmeas= 0.3699,KC= 0.17 Ncalc = 1.62 - 1.68 Optical Data: |
Uniaxial (-), e=2.3, w=2.4, bire=0.1000. |
RL Anisotrophism: |
Weak. |
RL Color: |
Gray with gray-brown internal reflections. |
Reflectivity |
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| Calculated Properties of Chiluite Electron Density: |
Bulk Density (Electron Density)=3.34 gm/cc |
note: Specific Gravity of Chiluite =3.98 gm/cc. Fermion Index: |
Fermion Index = 0.03 |
Boson Index = 0.97 Photoelectric: |
PEChiluite =1,244.46 barns/electron |
U=PEChiluite x rElectron Density=4,153.10 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Chiluite is Not Radioactive | Chiluite Classification Dana Class: |
07.11.13.01 (07)Multiple Oxides |
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(07.11)as titano-oxides with [4] and [6] substitutions |
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(07.11.13)Dana Group |
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Strunz Class: |
07.BD.55 07 - SULFATES (SELENATES, TELLURATES) |
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07.B - Sulfates (selenates, etc.) with Additional Anions, without H2O |
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07.BD -With only large cations |
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| Other Chiluite Information References: |
NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.76,p666,1991) OPTIC PROP.(AmMin.,Vol.76, p666,1991) |
See Also: |
Links to other databases for Chiluite : |
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 Chiluite using: Visit our Advertisers for Chiluite : A Bijoux Google Search for ChiluiteAdam's Minerals Google Search for Chiluite Cape Minerals Google Search for Chiluite Dakota Matrix Minerals Google Search for Chiluite Excalibur Mineral Corp. Google Search for Chiluite Exceptional Minerals Google Search for Chiluite John Betts Fine Minerals Search for Chiluite McDougall Minerals Google Search for Chiluite Mineral News Website Link Rock and Mineral Shows Google Search for Chiluite Weinrich Minerals, Inc. Google Search for Chiluite Ask about Chiluite here : Print or Cut-and-Paste your Chiluite Specimen Label here :
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