Phosphoferrite Mineral Data + Say PHOSPHOFERRITE


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General Phosphoferrite Information

Help on Chemical  Formula: Chemical Formula: (Fe++,Mn)3(PO4)2·3(H2O)
Help on Composition: Composition: Molecular Weight = 410.85 gm
   Manganese   10.03 %  Mn   12.95 % MnO
   Iron        30.58 %  Fe   39.35 % FeO
   Phosphorus  15.08 %  P    34.55 % P2O5
   Hydrogen     1.47 %  H    13.15 % H2O
   Oxygen      42.84 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: 3(Fe2+0.75)3(Mn2+0.25)(PO4)2·3(H2O)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1926
Help on Locality: Locality: Hagendorf Sud, near Pleystein, Oberpfalz, Bavaria, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the compositoin, PHOSPHate and FERRous Iron.
Help on Synonym: Synonym: ICSD 302
  PDF 9-479
 

Phosphoferrite Image

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Phosphoferrite

Comments: Translucent, brown crystal of phosphoferrite on matrix.
Location: Big Chief mine, Keystone, Pennington County, South Dakota, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Phosphoferrite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9391:1:0.8642
Help on Cell Dimensions: Cell Dimensions: a = 9.41, b = 10.02, c = 8.66, Z = 4; V = 816.54 Den(Calc)= 3.34
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pmna
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.18(1), 2.724(0.8), 4.25(0.7),
Help on Forms: Forms:

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Forms: [ 1 0 1] [ 0 2 2] [ 1 1 2] [ 0 1 0] [ 1 1 1] [ 2 1 2] [ 1 2 2] [ 1 0 0] [ 1 0 2] [ 0 0 1]

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Physical Properties of Phosphoferrite

Help on Cleavage: Cleavage: [010] Indistinct
Help on Color: Color: Colorless, Light green, Dark reddish brown, Reddish brown.
Help on Density: Density: 3.29
Help on Diaphaniety: Diaphaniety: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Octahedral Crystals - Occurs as octahedral shaped crystals.
Help on Hardness: Hardness: 3-3.5 - Calcite-Copper Penny
Help on Luster: Luster: Vitreous - Resinous
Help on Streak: Streak: white
 

Optical Properties of Phosphoferrite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.002 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.013 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2048,KPDmeas= 0.2079,KC= 0.2074
Help on Optical Data: Optical Data: Biaxial (+), a=1.672, b=1.68, g=1.7, bire=0.0280, 2V(Calc)=66, 2V(Meas)=68. Dispersion r > v distinct.
 

Calculated Properties of Phosphoferrite

Help on Electron Density: Electron Density:

relectron=3.22 gm/cc
note: rPhosphoferrite =3.29 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00669
Boson Index = 0.99331
Help on Photoelectric: Photoelectric:

PEPhosphoferrite = 12.37 barns/electron
U=PEPhosphoferrite x relectron= 39.86 barns/cc.

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

Phosphoferrite is Not Radioactive

 

Phosphoferrite Classification

Help on  Dana Class: Dana Class: 40.3.2.1 (40)Hydrated Phosphates, etc
  (40.3)where (A++)3 (XO4)2 · x(H2O)
  (40.3.2)Dana Group
 
40.3.2.1 Phosphoferrite (Fe,Mn)3(PO4)2·3(H2O) Pmna 2/m 2/m 2/m
 
40.3.2.2 Kryzhanovskite MnFe2(PO4)2(OH)2·(H2O) Pbna 2/m 2/m 2/m
 
40.3.2.3 Reddingite Mn3(PO4)2·3(H2O) Pbna 2/m 2/m 2/m
 
40.3.2.4 Landesite (Mn,Mg)9Fe3(PO4)8(OH)3·9(H2O) Pmna 2/m 2/m 2/m
 
40.3.2.5 Garyansellite (Mg,Fe)3(PO4)2(OH,O)·1,5(H2O) Pbna 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: VII/C.08-10 VII - Phosphates, Arsenates and Vanadates
  VII/C - Water-bearing phosphates without unfamiliar anions. cations of medium and small size: Be and Mn, Fe, Cu, Zn, Mg
  VII/C.08 - Phosphoferrite - Kryzhanovskite series
 
VII/C.08-10 Phosphoferrite (Fe,Mn)3(PO4)2·3(H2O) Pmna 2/m 2/m 2/m
 
VII/C.08-20 Reddingite Mn3(PO4)2·3(H2O) Pbna 2/m 2/m 2/m
 
VII/C.08-30 Garyansellite (Mg,Fe)3(PO4)2(OH,O)·1,5(H2O) Pbna 2/m 2/m 2/m
 
VII/C.08-40 Kryzhanovskite MnFe2(PO4)2(OH)2·(H2O) Pbna 2/m 2/m 2/m
 

Other Phosphoferrite 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 Phosphoferrite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

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Phosphoferrite

(Fe++,Mn)3(PO4)2·3(H2O)
Dana No: 40.3.2.1 Strunz No: VII/C.08-10
Locality:

 

Notes:

 

 
   
 
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