Ferrocarpholite Mineral Data + Say FERROCARPHOLITE

General Ferrocarpholite Information

Help on Chemical  Formula: Chemical Formula: (Fe++,Mg)Al2Si2O6(OH)4
Help on Composition: Composition: Molecular Weight = 322.12 gm
   Magnesium   1.89 %  Mg    3.13 % MgO
   Aluminum   16.75 %  Al   31.65 % Al2O3
   Iron       13.00 %  Fe   16.73 % FeO
   Silicon    17.44 %  Si   37.31 % SiO2
   Hydrogen    1.25 %  H    11.19 % H2O
   Oxygen     49.67 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+0.75Mg0.25Al2Si2O6(OH)4
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1951
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Synonym: Synonym: ICSD 34519
  PDF 33-655
 

Ferrocarpholite Image

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Ferrocarpholite

Comments: Pale yellow radiating ferrocarpholite crystals.
Location: Krasno, Zapadocesky, Czech Republic. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ferrocarpholite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.683:1:0.2532
Help on Cell Dimensions: Cell Dimensions: a = 13.797, b = 20.2, c = 5.116, Z = 8; V = 1,425.83 Den(Calc)= 3.00
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: C cca
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 5.04(1), 5.69(0.7), 3.355(0.3),
Click Here for Large Ferrocarpholite Structure Window Crystal Structure:

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Ferraris G , Ivaldi G , Goffe B , Neues Jahrbuch fur Mineralogie, Monatshefte , 1992 (1992) p.337-347, Structural study of a magnesian ferrocarpholite: Are carpholites monoclinic?, Locality: Mascate nappes, Ruwi, Oman

 

Physical Properties of Ferrocarpholite

Help on Cleavage: Cleavage: [010] Perfect, [110] Indistinct
Help on Color: Color: Gray green, Dark green.
Help on Density: Density: 3.04
Help on Diaphaniety: Diaphaniety: Translucent
Help on Hardness: Hardness: 5.5 - Knife Blade
Help on Luster: Luster: Silky
Help on Streak: Streak: greenish white
 

Optical Properties of Ferrocarpholite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.059 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.046 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2088,KPDmeas= 0.206,KC= 0.2189
Help on Optical Data: Optical Data: Biaxial (-), a=1.614, b=1.63, g=1.635, bire=0.0210, 2V(Calc)=56, 2V(Meas)=58.
 

Calculated Properties of Ferrocarpholite

Help on Electron Density: Electron Density:

relectron=2.99 gm/cc
note: rFerrocarpholite =3.00 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.01302
Boson Index = 0.98698
Help on Photoelectric: Photoelectric:

PEFerrocarpholite = 5.03 barns/electron
U=PEFerrocarpholite x relectron= 15.03 barns/cc.

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

Ferrocarpholite is Not Radioactive

 

Ferrocarpholite Classification

Help on  Dana Class: Dana Class: 65.1.5.2 (65)Inosilicate Single-Width Unbranched Chains, W=1
  (65.1)with chains P=2
  (65.1.5)Carpholite group
 
65.1.5.1 Carpholite MnAl2Si2O6(OH)4 C cca 2/m 2/m 2/m
 
65.1.5.2 Ferrocarpholite (Fe,Mg)Al2Si2O6(OH)4 C cca 2/m 2/m 2/m
 
65.1.5.3 Magnesiocarpholite MgAl2Si2O6(OH)4 C cca 2/m 2/m 2/m
 
65.1.5.4 Balipholite BaMg2LiAl3Si4O12(OH,F)8 C cca 2/m 2/m 2/m
 
65.1.5.5 Potassic-carpholite! (K,Na,[])(Li,Mn)2Al)4Si4O12(OH)4(F,OH)4 C cca 2/m 2/m 2/m
 
65.1.5.6 Vanadiocarpholite! MnVAl(Si2O6)(OH)4 C cca 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: VIII/F.03-20 VIII - Silicates
  VIII/F - Inosilicates (chain and band) double chains [Si2O6]4-
  VIII/F.03 - Magnesiocarpholite - Vinogradovite series
 
VIII/F.03-10 Magnesiocarpholite MgAl2Si2O6(OH)4 C cca 2/m 2/m 2/m
 
VIII/F.03-20 Ferrocarpholite (Fe,Mg)Al2Si2O6(OH)4 C cca 2/m 2/m 2/m
 
VIII/F.03-30 Carpholite MnAl2Si2O6(OH)4 C cca 2/m 2/m 2/m
 
VIII/F.03-40 Balipholite BaMg2LiAl3Si4O12(OH,F)8 C cca 2/m 2/m 2/m
 
VIII/F.03-50 Lorenzenite Na2Ti2Si2O9 P bcn 2/m 2/m 2/m
 
VIII/F.03-60 Lintisite Na3LiTi2Si4O14·2(H2O) C 2/c 2/m
 
VIII/F.03-70 Vinogradovite (Na,K)4Ti4(Si,Al)8O26·3(H2O,Na) A2/a 2/m
 
VIII/F.03-80 Paravinogradovite! (Na,[])2(Ti,Fe)4(Si2O6)2(Si3AlO10)(OH)4·H2O P1 1
 

Other Ferrocarpholite 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 Ferrocarpholite :
1 -Am. Min. Crystal Structure Database 2 - Applied Mineralogy 3 -Athena 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (MinSocAm) 8 -Handbook of Mineralogy (UofA) 9 -MinDAT 10 -MinMax(Deutsch) 11 -MinMax(English) 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 - WWW-MINCRYST 15 -École des Mines de Paris

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Ferrocarpholite

(Fe++,Mg)Al2Si2O6(OH)4
Dana No: 65.1.5.2 Strunz No: VIII/F.03-20
Locality:

 

Notes:

 

 
   
 
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