Mineralogy Database

Magnesiocoulsonite Mineral Data

Search Webmineral :
  
Advertisment

General Magnesiocoulsonite Information

Help on Chemical  Formula: Chemical Formula: MgV+++2O4
Help on Composition: Composition: Molecular Weight = 190.19 gm
   Magnesium  12.78 %  Mg   21.19 % MgO
   Vanadium   53.57 %  V    78.81 % V2O3
   Oxygen     33.65 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: MgV3+2O4
Help on Environment: Environment: An accessory mineral in Cr-V bearing parametamorphic rocks.
Help on IMA Status: IMA Status: Approved IMA 1995
Help on Locality: Locality: Precambrian Slyudyanka Complex, Slyudyanka, southern Lake Baikal Region, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its relationship to coulsonite.
Help on Synonym: Synonym: ICSD 60412
  IMA1994-034
  PDF 77-2130
 

Magnesiocoulsonite Image

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

  Magnesiocoulsonite   Tremolite

Comments: Black grains of magnesiocoulsonite with green chromian tremolite. Metallic bronze grain of thiospinelid of kalininite-florensovite series is visible in the upper right corner of the image.
Location: Pereval Marble Quarry, Slyudyanka (Sludyanka), Lake Baikal area, Irkutskaya Oblast', Prebaikalia (Pribaikal'e), Eastern-Siberian Region, Russia. Scale: FOV is 3x2 mm.
© Pavel M. Kartashov

Magnesiocoulsonite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 8.385, Z = 8; V = 589.53 Den(Calc)= 4.29
Help on Crystal System: Crystal System: Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.52(1), 1.582(0.9), 4.84(0.9),
 

Physical Properties of Magnesiocoulsonite

Help on Cleavage: Cleavage: None
Help on Color: Color: Black.
Help on Density: Density: 4.3
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Disseminated - Occurs in small, distinct particles dispersed in matrix.
Help on Hardness: Hardness: 6-6.5 - Orthoclase-Pyrite
Help on Luster: Luster: Metallic
Help on Streak: Streak: black
 

Optical Properties of Magnesiocoulsonite

Help on Optical Data: Optical Data: Isotropic.
  NCalc= 2.13 - from Gladstone-Dale relationship (KC = 0.2623) where Ncalc=Dcalc*KC+1
NCalc= 2.13 - from Gladstone-Dale relationship (KC = 0.2623) where Ncalc=Dmeas*KC+1
Help on RL Color: RL Color: Light gray.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Magnesiocoulsonite in Air
λ R  ∑ R(λ) 
 400 nm   14.30   
 420 nm   14.20 
 440 nm   14.10 
 460 nm   14.00 
 480 nm   13.90 
 500 nm   13.80 
 520 nm   13.80 
 540 nm   13.70 
 560 nm   13.70 
 580 nm   13.70 
 600 nm   13.70 
 620 nm   13.70 
 640 nm   13.70 
 660 nm   13.80 
 680 nm   13.80 
 700 nm   13.70 
Calculated Relative Intensity Colors of Magnesiocoulsonite in Air
Relative
Intensity
   0%   70% 100% 140% 210% 280% 350% 420% 490% 560% 630% 640%
R                        
 

Calculated Properties of Magnesiocoulsonite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.06 gm/cc
note: Specific Gravity of Magnesiocoulsonite =4.29 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEMagnesiocoulsonite = 10.62 barns/electron
U=PEMagnesiocoulsonite x rElectron Density= 43.10 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Magnesiocoulsonite is Not Radioactive
 

Magnesiocoulsonite Classification

Help on  Dana Class: Dana Class: 07.02.04.03 (07)Multiple Oxides
  (07.02)(A+ B++)2 X4 Spinel group
  (07.02.04)(Vanadium subgroup)
 
07.02.04.01 Vuorelainenite (Mn,Fe)(V,Cr)2O4 F d3m 4/m 3 2/m
 
07.02.04.02 Coulsonite FeV2O4 F d3m 4/m 3 2/m
 
07.02.04.03 Magnesiocoulsonite MgV2O4 F d3m 4/m 3 2/m
Help on  Strunz Class: Strunz Class: 04.BB.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.B - Metal:Oxygen = 3:4 and similar
  04.BB -With only medium-sized cations
 
04.BB.05 Cochromite (Co,Ni,Fe)(Cr,Al)2O4 F d3m 4/m 3 2/m
 
04.BB.05 Filipstadite (Mn,Mg)4SbFeO8 pseudo ISO 2/m 2/m 2/m
 
04.BB.05 Magnetite FeFe2O4 F d3m 4/m 3 2/m
 
04.BB.05 Gahnite ZnAl2O4 F d3m 4/m 3 2/m
 
04.BB.05 Chromite FeCr2O4 F d3m 4/m 3 2/m
 
04.BB.05 Galaxite (Mn,Mg)(Al,Fe)2O4 F d3m 4/m 3 2/m
 
04.BB.05 Cuprospinel (Cu,Mg)Fe2O4 F d3m 4/m 3 2/m
 
04.BB.05 Donathite? (Fe,Mg)(Cr,Fe)2O4 P 4/nnm 4/m 2/m 2/m
 
04.BB.05 Brunogeierite (Ge,Fe)Fe2O4 F d3m 4/m 3 2/m
 
04.BB.05 Coulsonite FeV2O4 F d3m 4/m 3 2/m
 
04.BB.05 Hercynite FeAl2O4 F d3m 4/m 3 2/m
 
04.BB.05 Franklinite (Zn,Mn,Fe)(Fe,Mn)2O4 F d3m 4/m 3 2/m
 
04.BB.05 Jacobsite (Mn,Fe,Mg)(Fe,Mn)2O4 F d3m 4/m 3 2/m
 
04.BB.05 Magnesiochromite MgCr2O4 F d3m 4/m 3 2/m
 
04.BB.05 Magnesioferrite MgFe2O4 F d3m 4/m 3 2/m
 
04.BB.05 Magnesiocoulsonite MgV2O4 F d3m 4/m 3 2/m
 
04.BB.05 Manganochromite (Mn,Fe)(Cr,V)2O4 F d3m 4/m 3 2/m
 
04.BB.05 Qandilite (Mg,Fe)2(Ti,Fe,Al)O4 F d3m 4/m 3 2/m
 
04.BB.05 Nichromite (Ni,Co,Fe)(Cr,Fe,Al)2O4 F d3m 4/m 3 2/m
 
04.BB.05 Spinel MgAl2O4 F d3m 4/m 3 2/m
 
04.BB.05 Ulvospinel TiFe2O4 F d3m 4/m 3 2/m
 
04.BB.05 Zincochromite ZnCr2O4 F d3m 4/m 3 2/m
 
04.BB.05 Trevorite NiFe2O4 F d3m 4/m 3 2/m
 
04.BB.05 Vuorelainenite (Mn,Fe)(V,Cr)2O4 F d3m 4/m 3 2/m
 

Other Magnesiocoulsonite Information

Help on References: References: NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.81,p1283,1996) OPTIC PROP.(AntBidBlaNic3)
Help on See Also: See Also: Links to other databases for Magnesiocoulsonite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

Search for Magnesiocoulsonite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Magnesiocoulsonite :

Ask about Magnesiocoulsonite 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 Magnesiocoulsonite Specimen Label here :

Magnesiocoulsonite

MgV+++2O4
Dana No: 07.02.04.03 Strunz No: 04.BB.05
Locality:

 

Notes:

 

 
   
 


Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.