Erlianite Mineral Data

Erlianite Mineral Data
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General Erlianite Information

Help on Chemical Formula: Chemical Formula: (Fe++,Mg)4(Fe+++,V+++)2[Si6O15](O,OH)8
Help on Composition: Composition: Molecular Weight = 861.42 gm
   Magnesium   1.41 %  Mg    2.34 % MgO
   Vanadium    2.96 %  V     4.35 % V2O3
   Iron       32.42 %  Fe   29.19 % FeO / 13.90 % Fe2O3
   Silicon    19.56 %  Si   41.85 % SiO2
   Hydrogen    0.94 %  H     8.37 % H2O
   Oxygen     42.72 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+3.5Mg0.5Fe3+1.5V3+0.5Si6O15(OH)8
Help on IMA Status: IMA Status: Approved IMA 1985
Help on Locality: Locality: Harhada iron deposit, near the Jining-Erlian railway, Inner Mongolia, China. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Erlianite + Pronunciation Say ERLIANITE
 

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Erlianite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =2.5217:1:1.4326
Help on Cell Dimensions: Cell Dimensions: a = 23.2, b = 9.2, c = 13.18, Z = 6; V = 2,813.14 Den(Calc)= 3.05
Help on Crystal System: Crystal System: OrthorhombicSpace Group: Pmmn,Pm21
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 11.5(1), 2.61(0.6), 2.89(0.6),
 

Physical Properties of Erlianite

Help on Cleavage: Cleavage: {001} Perfect, {100} Perfect
Help on Color: Color: Black.
Help on Density: Density: 3.11
Help on Diaphaneity: Diaphaneity: Nearly opaque
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Silky
Help on Streak: Streak: brown
 

Optical Properties of Erlianite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.063 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.044 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2208,KPDmeas= 0.2165,KC= 0.231
Ncalc = 1.7 - 1.72
Help on Optical Data: Optical Data: Biaxial (-), a=1.667, b=1.674, g=1.679, bire=0.0120, 2V(Calc)=80, 2V(Meas)=56-59.
 

Calculated Properties of Erlianite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.00 gm/cc
note: Specific Gravity of Erlianite =3.05 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEErlianite = 10.95 barns/electron
U=PEErlianite x rElectron Density= 32.85 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Erlianite is Not Radioactive
 

Erlianite Classification
Help on Dana Class: Dana Class: 78.05.05.01 (78)Unclassified silicates
  (78.05)possible phyllosilicates
  (78.05.05)Dana Group
 
78.05.05.01 Erlianite (Fe,Mg)4(Fe,V)2[Si6O15](O,OH)8 Pmmn,Pm21 Ortho
Help on Strunz Class: Strunz Class: 09.HC.05 09 - SILICATES (Germanates)
  09.H - Unclassified Silicates
  09.HC -With Mn, Fe
 
09.HC.05 Erlianite (Fe,Mg)4(Fe,V)2[Si6O15](O,OH)8 Pmmn,Pm21 Ortho
 

Other Erlianite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Erlianite :
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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Erlianite

(Fe++,Mg)4(Fe+++,V+++)2[Si6O15](O,OH)8
Dana No: 78.05.05.01 Strunz No: 09.HC.05
Locality:

 

Notes: