Ferrisicklerite Mineral Data + Say FERRISICKLERITE


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General Ferrisicklerite Information

Help on Chemical  Formula: Chemical Formula: Li(Fe+++,Mn++)PO4
Help on Composition: Composition: Molecular Weight = 157.53 gm
   Lithium      4.41 %  Li    9.48 % Li2O
   Manganese    8.72 %  Mn   11.26 % MnO
   Iron        26.59 %  Fe   38.01 % Fe2O3
   Phosphorus  19.66 %  P    45.05 % P2O5
   Oxygen      40.63 %  O
              ______        ______ 
              100.00 %      103.81 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: LiFe3+0.75Mn2+0.25(PO4)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1937
Help on Locality: Locality: Link to MinDat.org Location Data.
 

Ferrisicklerite Image

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Ferrisicklerite

Comments: Dark brown massive ferrisicklerite.
Location: Palermo Mine, North Groton, Grafton County, New Hampshire, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ferrisicklerite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.59:1:0.4783
Help on Cell Dimensions: Cell Dimensions: a = 5.916, b = 10.026, c = 4.7956, Z = 4; V = 284.45 Den(Calc)= 3.68
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pmnb
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.959(1), 5.01(0.7), 4.33(0.4),
Click Here for Large Ferrisicklerite Structure Window Crystal Structure:

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Alberti A , Acta Crystallographica, Section B , 32 (1976) p.2761-2764, Crystal structure of ferrisicklerite, Li<1(Fe3+,Mn2+)PO4, Locality: Sidi-Bou-Othmane, Jebilet, Morocco

 

Physical Properties of Ferrisicklerite

Help on Cleavage: Cleavage: [100] Good
Help on Color: Color: Yellow brown, Dark brown.
Help on Density: Density: 3.41
Help on Diaphaniety: Diaphaniety: Opaque
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Earthy (Dull)
Help on Streak: Streak: light brown
 

Optical Properties of Ferrisicklerite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.069 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.137 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2188,KPDmeas= 0.2361,KC= 0.2535
Help on Optical Data: Optical Data: Biaxial (-), a=1.79, b=1.805, g=1.82, bire=0.0300, 2V(Calc)=88, 2V(Meas)=85.
 

Calculated Properties of Ferrisicklerite

Help on Electron Density: Electron Density:

relectron=3.28 gm/cc
note: rFerrisicklerite =3.41 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00913
Boson Index = 0.99087
Help on Photoelectric: Photoelectric:

PEFerrisicklerite = 11.25 barns/electron
U=PEFerrisicklerite x relectron= 36.89 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Ferrisicklerite is Not Radioactive

 

Ferrisicklerite Classification

Help on  Dana Class: Dana Class: 38.1.4.1 (38)Anhydrous Phosphates, etc
  (38.1)A+ B++ XO4
  (38.1.4)Dana Group
 
38.1.4.1 Ferrisicklerite Li(Fe,Mn)PO4 Pmnb 2/m 2/m 2/m
 
38.1.4.2 Sicklerite Li(Mn,Fe)PO4 Pmnb 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: VII/A.02-30 VII - Phosphates, Arsenates and Vanadates
  VII/A - Waterfree phosphates [PO4]3- without unfamiliar anions. cations of medium size: Mostly Fe, Mn
  VII/A.02 - Simferrite - Natrophilite series
 
VII/A.02-05 Simferite Li(Mg,Fe,Mn)2(PO4)2 Pbnm,Pbn21 Ortho
 
VII/A.02-10 Triphylite LiFePO4 Pbnm 2/m 2/m 2/m
 
VII/A.02-20 Lithiophilite LiMnPO4 Pmnb 2/m 2/m 2/m
 
VII/A.02-30 Ferrisicklerite Li(Fe,Mn)PO4 Pmnb 2/m 2/m 2/m
 
VII/A.02-40 Sicklerite Li(Mn,Fe)PO4 Pmnb 2/m 2/m 2/m
 
VII/A.02-50 Heterosite FePO4 Pmnb 2/m 2/m 2/m
 
VII/A.02-60 Purpurite MnPO4 Pmnb 2/m 2/m 2/m
 
VII/A.02-70 Maricite NaFePO4 Pmnb 2/m 2/m 2/m
 
VII/A.02-80 Natrophilite NaMnPO4 Pnam 2/m 2/m 2/m
 

Other Ferrisicklerite Information

Help on References: References: 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 Ferrisicklerite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas 11 - WWW-MINCRYST 12 -École des Mines de Paris

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Ferrisicklerite

Li(Fe+++,Mn++)PO4
Dana No: 38.1.4.1 Strunz No: VII/A.02-30
Locality:

 

Notes:

 

 
   
 
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