Molybdite Mineral Data

Molybdite Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About


Dan Weinrich Auctions
[Mineral Auctions] [Register] [Current Auctions] [Log In] [www.danweinrich.com]
Weinrich Minerals Auctions, Inc
Specializing In Live Weekly Auctions Of Top Quality Mineral Specimens
The Place To Find Great Specimens At Great Prices!


General Molybdite Information

Help on Chemical Formula: Chemical Formula: MoO3
Help on Composition: Composition: Molecular Weight = 143.94 gm
   Molybdenum  66.65 %  Mo  100.00 % MoO3
   Oxygen      33.35 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: MoO3
Help on Environment: Environment: In cavities in topaz-quartz greisen.
Help on IMA Status: IMA Status: Approved IMA 1963
Help on Locality: Locality: Krupka, northwestern Bohemia, Czech Republic. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the composition.
Help on Name Pronunciation: Name Pronunciation: Molybdite + Pronunciation Say MOLYBDITE
Help on Synonym: Synonym: ICSD 35076
  PDF 35-609
 

Molybdite Image

Click Here for Larger Molybdite Image in a New Browser Window Images:
Click Here for Larger Molybdite Image

Molybdite

Comments: Greenish yellow molybdite crust on quartz.
Location: Siberia, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Molybdite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.2863:1:0.2672
Help on Cell Dimensions: Cell Dimensions: a = 3.954, b = 13.808, c = 3.69, Z = 4; V = 201.46 Den(Calc)= 4.75
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pbnm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.25(1), 3.8(1), 3.45(0.9),
Click Here for Large Molybdite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
 Help on Above


Sitepu H , O Connor B H , Li D , Journal of Applied Crystallography , 38 (2005) p.158-167, Comparative evaluation of the March and generalized spherical harmonic, preferred orientation models using X-ray diffraction data for molybdite, and calcite powders, Note: March model, Locality: synthetic

 

Physical Properties of Molybdite

Help on Cleavage: Cleavage: {100} Perfect, {001} Distinct
Help on Color: Color: Colorless, Greenish yellow, Light greenish yellow.
Help on Density: Density: 4.72
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 3-4 - Calcite-Fluorite
Help on Luster: Luster: Adamantine
Help on Streak: Streak: white
 

Optical Properties of Molybdite

Help on Optical Data: Optical Data: NCalc= 2.13 - from Gladstone-Dale relationship (KC = 0.237) where Ncalc=Dcalc*KC+1
NCalc= 2.12 - from Gladstone-Dale relationship (KC = 0.237) where Ncalc=Dmeas*KC+1
 

Calculated Properties of Molybdite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.36 gm/cc
note: Specific Gravity of Molybdite =4.75 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.16
Boson Index = 0.84
Help on Photoelectric: Photoelectric: PEMolybdite = 111.17 barns/electron
U=PEMolybdite x rElectron Density= 484.25 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Molybdite is Not Radioactive
 

Molybdite Classification
Help on Dana Class: Dana Class: 04.05.01.01 (04)Simple Oxides
  (04.05)with a cation charge of 6+ (A++++++ O3)
  (04.05.01)Dana Group
 
04.05.01.01 Molybdite MoO3 Pbnm 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: 04.EA.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.E - Metal:Oxygen = < 1:2
  04.EA -Oxides with metal : oxygen < 1:2 (M2O5, MO3)
 
04.EA.10 Krasnogorite* WO3 Pmnb 2/m 2/m 2/m
 
04.EA.10 Molybdite MoO3 Pbnm 2/m 2/m 2/m
 

Other Molybdite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Molybdite :
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 - Scandinavian mineral gallery
16 - WWW-MINCRYST

Search for Molybdite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [bing] [GeoScienceWorld] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Molybdite :

B & L Fine Minerals

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

John Betts Fine Minerals

Lapis Mineral Journal

Mineral News

UV Tools

Wrights Rock Shop

Translate Molybdite Mineral Data :

Ask about Molybdite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaņol

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

Molybdite

MoO3
Dana No: 04.05.01.01 Strunz No: 04.EA.10
Locality:

 

Notes: