Mgriite Mineral Data

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



[Mineral Forums] [Minerals for Sale] [About Us] [En Espanol] [Mineral Gallery]
Fabre Minerals - Europe's first Internet mineral dealer, on the web since 1996


General Mgriite Information

Help on Chemical Formula: Chemical Formula: (Cu,Fe)3AsSe3
Help on Composition: Composition: Molecular Weight = 496.67 gm
   Iron       8.43 %  Fe
   Copper    28.79 %  Cu
   Arsenic   15.08 %  As
   Selenium  47.69 %  Se
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Cu2.25Fe2+0.75AsSe3
Help on Environment: Environment: In hydrotherma veins.
Help on IMA Status: IMA Status: Approved IMA 1982
Help on Locality: Locality: Erzgibirge, Saxony, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the Moscow Geological Exploration Institute (MGEI).
Help on Name Pronunciation: Name Pronunciation: Mgriite Say MGRIITE
Help on Synonym: Synonym: ICSD 42582
  PDF 40-1251
 

Search for Mgriite Images

Click Here To Search Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.
  

Mgriite Crystallography
Help on Cell Dimensions: Cell Dimensions: a = 5.53, Z = 1; V = 169.11 Den(Calc)= 4.88
Help on Crystal System: Crystal System: Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F d3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 1.952(1), 3.18(1), 1.671(0.5),
Click Here for Large Mgriite 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


Bayliss P , The Canadian Mineralogist , 28 (1990) p.751-755, Revised unit cell dimensions, space group,, and chemical formua of some metallic minerals, Locality: synthetic

 

Physical Properties of Mgriite

Help on Cleavage: Cleavage: None
Help on Color: Color: Brownish gray, Light gray.
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Hardness: Hardness: 4.5-5 - Near Apatite
Help on Luster: Luster: Metallic
 

Optical Properties of Mgriite

Help on RL Color: RL Color: Gray with brownish tint.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Mgriite in Air
λ R  ∑ R(λ) 
 420 nm   27.10   
 460 nm   26.70 
 500 nm   26.40 
 540 nm   26.90 
 580 nm   27.00 
 620 nm   26.80 
 660 nm   26.40 
 700 nm   26.00 
Calculated Relative Intensity Colors of Mgriite in Air
Relative
Intensity		    0%   40%   80% 100% 120% 160% 200% 240% 280% 320% 330%
R                      
 

Calculated Properties of Mgriite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.32 gm/cc
note: Specific Gravity of Mgriite =4.88 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEMgriite = 65.24 barns/electron
U=PEMgriite x rElectron Density= 281.73 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Mgriite is Not Radioactive
 

Mgriite Classification
Help on Dana Class: Dana Class: 03.04.07.02 (03)Sulfides - Sulfosalts
  (03.04)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.04.07)Dana Group
 
03.04.07.02 Mgriite (Cu,Fe)3AsSe3 F d3m 4/m 3 2/m
Help on Strunz Class: Strunz Class: 02.LA.45 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.L - Unclassified Sulfosalts
  02.LA -Without essential Pb
 
02.LA.45 Mgriite (Cu,Fe)3AsSe3 F d3m 4/m 3 2/m
 

Other Mgriite Information
Help on References: References: PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Mgriite :
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 Mgriite using:

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

Visit our Advertisers for Mgriite :

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 Mgriite Mineral Data :

Ask about Mgriite 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 Mgriite Specimen Label here :

Mgriite

(Cu,Fe)3AsSe3
Dana No: 03.04.07.02 Strunz No: 02.LA.45
Locality:

 

Notes: