Mineralogy Database

Chiluite Mineral Data

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General Chiluite Information

Help on Chemical  Formula: Chemical Formula: Bi6Te++++++2Mo++++++2O21
Help on Composition: Composition: Molecular Weight = 2,036.95 gm
   Bismuth     61.56 %  Bi   68.63 % Bi2O3
   Tellurium   12.53 %  Te   15.67 % TeO2
   Molybdenum   9.42 %  Mo   14.13 % MoO3
   Oxygen      16.49 %  O
              ______        ______ 
              100.00 %       98.43 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Bi6Te2Mo2O21
Help on Environment: Environment: Molybdenite deposit.
Help on IMA Status: IMA Status: Approved IMA 1989
Help on Locality: Locality: Chilu, Fujian, China. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality.
Help on Synonym: Synonym: Chilunite
 

Chiluite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.36086
Help on Cell Dimensions: Cell Dimensions: a = 8.97, c = 12.207, Z = 1; V = 850.60 Den(Calc)= 3.98
Help on Crystal System: Crystal System: Hexagonal Space Group: P 6322, P 63/m, P 63
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.3(1), 3.05(0.9), 2.51(0.5),
 

Physical Properties of Chiluite

Help on Color: Color: Yellow.
Help on Density: Density: 3.65
Help on Diaphaneity: Diaphaneity: Semitransparent
Help on Habit: Habit: Anhedral Grains - Granular minerals without the expression of crystal shapes
Help on Habit: Habit: Hexagonal - Six-sided crystal shape in cross-section or habit.
Help on Habit: Habit: Plumose - "Mica-like" minerals forming aggregates of plume-like forms.
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Sub Metallic
 

Optical Properties of Chiluite

Help on Gladstone-Dale: 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
Help on Optical Data: Optical Data: Uniaxial (-), e=2.3, w=2.4, bire=0.1000.
Help on RL Anisotrophism: RL Anisotrophism: Weak.
Help on RL Color: RL Color: Gray with gray-brown internal reflections.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Chiluite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 410 nm   19.45   20.75 
   
 430 nm   19.25   20.45 
 450 nm   18.80   20.00 
 470 nm   18.40   19.50 
 490 nm   18.00   18.90 
 510 nm   17.75   18.60 
 530 nm   17.50   18.40 
 550 nm   17.25   18.25 
 570 nm   17.00   18.05 
 590 nm   16.75   17.80 
 610 nm   16.65   17.60 
 630 nm   16.50   17.40 
 650 nm   16.45   17.30 
 670 nm   16.30   17.20 
 690 nm   16.75   17.00 
Calculated Relative Intensity Colors of Chiluite in Air
Relative
Intensity
   0%   60% 100% 120% 180% 240% 300% 360% 420% 480% 520%
R1                      
R2                      
 

Calculated Properties of Chiluite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.34 gm/cc
note: Specific Gravity of Chiluite =3.98 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEChiluite =1,244.46 barns/electron
U=PEChiluite x rElectron Density=4,153.10 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Chiluite is Not Radioactive
 

Chiluite Classification

Help on  Dana Class: Dana Class: 07.11.13.01 (07)Multiple Oxides
  (07.11)as titano-oxides with [4] and [6] substitutions
  (07.11.13)Dana Group
 
07.11.13.01 Chiluite Bi6Te2Mo2O21 P 6322, P 63/m, P 63 Hex
Help on  Strunz Class: Strunz Class: 07.BD.55 07 - SULFATES (SELENATES, TELLURATES)
  07.B - Sulfates (selenates, etc.) with Additional Anions, without H2O
  07.BD -With only large cations
 
07.BD.55 Chiluite Bi6Te2Mo2O21 P 6322, P 63/m, P 63 Hex
 

Other Chiluite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.76,p666,1991) OPTIC PROP.(AmMin.,Vol.76, p666,1991)
Help on See Also: 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

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

Chiluite

Bi6Te++++++2Mo++++++2O21
Dana No: 07.11.13.01 Strunz No: 07.BD.55
Locality:

 

Notes:

 

 
   
 


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