Mineralogy Database

Ferrisicklerite Mineral Data

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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 Environment: Environment: Late hydrothermal alteration or weathering of triphylite-lithiophilite in complex zoned granite pegmatites.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1937
Help on Locality: Locality: Varutrask pegmatite, 15 km northwest of Skelleftea, Vasterbotten, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its dominant ferric iron content and relation to sicklerite.
Help on Name Pronunciation: Name Pronunciation: Ferrisicklerite + Pronunciation Say FERRISICKLERITE

Ferrisicklerite Image

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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 - Dipyramidal H-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),

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 Diaphaneity: Diaphaneity: 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
Ncalc = 1.86 - 1.93
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: Bulk Density (Electron Density)=3.28 gm/cc
note: Specific Gravity of Ferrisicklerite =3.41 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0091363025
Boson Index = 0.9908636975
Help on Photoelectric: Photoelectric: PEFerrisicklerite = 11.25 barns/electron
U=PEFerrisicklerite x rElectron Density= 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)Anhydrous Phosphates, etc
  (38.01)A+ B++ XO4
  (38.01.04)Dana Group Ferrisicklerite Li(Fe,Mn)PO4 Pmnb 2/m 2/m 2/m Sicklerite Li(Mn,Fe)PO4 Pmnb 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 08.AB.10 08 - PHOSPHATES, ARSENATES, VANADATES
  08.A - Phosphates, etc. without additional anions, without H2O
  08.AB -With medium-sized cations
08.AB.10 Ferrisicklerite Li(Fe,Mn)PO4 Pmnb 2/m 2/m 2/m
08.AB.10 Heterosite FePO4 Pmnb 2/m 2/m 2/m
08.AB.10 Natrophilite NaMnPO4 Pnam 2/m 2/m 2/m
08.AB.10 Lithiophilite LiMnPO4 Pmnb 2/m 2/m 2/m
08.AB.10 Purpurite MnPO4 Pmnb 2/m 2/m 2/m
08.AB.10 Sicklerite Li(Mn,Fe)PO4 Pmnb 2/m 2/m 2/m
08.AB.10 Simferite Li(Mg,Fe,Mn)2(PO4)2 Pbnm or Pbn21 Ortho
08.AB.10 Triphylite LiFePO4 Pbnm 2/m 2/m 2/m

Other Ferrisicklerite Information

Help on References: References: NAME( AntBidBlaNic5) 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 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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Dana No: Strunz No: 08.AB.10





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