Ferri-clinoferroholmquistite  Mineral Data

Ferri-clinoferroholmquistite Mineral Data

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General Ferri-clinoferroholmquistite Information

Help on Chemical  Formula: Chemical Formula: [ ]Li2(Fe+++2Fe++3)Si8O22(OH)2
Help on Composition: Composition: Molecular Weight = 848.25 gm
   Sodium      0.98 %  Na    1.32 % Na2O
   Lithium     1.78 %  Li    3.84 % Li2O
   Magnesium   3.04 %  Mg    5.04 % MgO
   Aluminum    0.83 %  Al    1.56 % Al2O3
   Iron       21.27 %  Fe   13.13 % FeO / 15.81 % Fe2O3
   Silicon    26.49 %  Si   56.67 % SiO2
   Hydrogen    0.21 %  H     1.90 % H2O
   Oxygen     44.87 %  O
   Fluorine    0.54 %  F     0.54 % F
                -   %   F    -0.23 % -O=F2    
             ______        ______ 
             100.00 %       99.58 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na0.28Li1.9Na0.08Fe3+1.68Fe2+1.55Mg1.06Li0.28Al0.26Si8O22(OH)1.79F0.24
Help on Environment: Environment: Metamorphic episyenites (deslicification and albitizaton of a cordierite-bearing porphyritic granite). New Group 5 amphibole classification.
Help on IMA Status: IMA Status: Approved IMA 2003 (Dana # Added)
Help on Locality: Locality: Pedriza Massif, Sierra del Guadarrama, Spain. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Johan Holmquist (1866-1946) and the Fe++ and Fe+++ clinoamphiboles.
Help on Synonym: Synonym: IMA2001-066
 

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Ferri-clinoferroholmquistite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5286:1:0.2962
Help on Cell Dimensions: Cell Dimensions: a = 9.462, b = 17.898, c = 5.302, Z = 2; beta = 101.88° V = 878.67 Den(Calc)= 3.21
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 8.224(1)(110), 2.717(0.69)(151), 3.042(0.54)(310),2.492(0.32)(202), 3.42(0.3)(131), 4.474(0.3)(040), 1.389(0.27), 2.165(0.21)(261), 2.586(0.2)(061),
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Oberti R , Camara F , Caballero J M , Ottolini L , The Canadian Mineralogist , 41 (2003) p.1345-1354, Sodic-ferri-ferropedrizite and ferri-clinoferroholmquistite: mineral data and, degree of order of the A-site cations in Li-rich amphiboles, Sequence number in the CNR-IGG database: SEQ 1043

 

Physical Properties of Ferri-clinoferroholmquistite

Help on Cleavage: Cleavage: {110} Good, {110} Good
Help on Color: Color: Black.
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Anhedral Grains - Granular minerals without the expression of crystal shapes
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: gray
 

Optical Properties of Ferri-clinoferroholmquistite

Help on Optical Data: Optical Data: Biaxial (?)
  NCalc= 1.73 - from Gladstone-Dale relationship (KC = 0.2267) where Ncalc=Dcalc*KC+1
 

Calculated Properties of Ferri-clinoferroholmquistite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.15 gm/cc
note: Specific Gravity of Ferri-clinoferroholmquistite =3.21 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEFerri-clinoferroholmquistite = 7.45 barns/electron
U=PEFerri-clinoferroholmquistite x rElectron Density= 23.50 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ferri-clinoferroholmquistite is Not Radioactive
 

Ferri-clinoferroholmquistite Classification

Help on  Dana Class: Dana Class: 66.01.01.08b (66)Inosilicate Double-Width Unbranched Chains, W=2
  (66.01)with P=2 amphibole configuration
  (66.01.01)Group 1, the Mg-Fe-Mn-Li amphiboles (Monoclinic)
 
66.01.01.01 Magnesiocummingtonite (Mg,Fe)7Si8O22(OH)2 C 2/m 2/m
 
66.01.01.02 Cummingtonite []Mg7Si8O22(OH)2 C 2/m 2/m
 
66.01.01.03 Grunerite []Fe7Si8O22(OH)2 C 2/m 2/m
 
66.01.01.03b Permanganogrunerite! []Mn4(Fe)3(Si8O22)(OH)2 C 2/m 2/m
 
66.01.01.04 Manganocummingtonite Na(Na,Mn)2(Mg4,Fe)5Si8O22(OH)2 C 2/m 2/m
 
66.01.01.05 Manganogrunerite []Mn2Fe5Si8O22(OH) C 2/m 2/m
 
66.01.01.06 Magnesioclinoholmquistite? Li2(Mg,Fe)3Al2Si8O22(OH)2 C 2/m 2/m
 
66.01.01.07 Clinoholmquistite? [](Li2Mg3Al2)Si8O22(OH)2 C 2/m 2/m
 
66.01.01.08 Clinoferroholmquistite [](Li2Fe3Al2)Si8O22(OH)2 C 2/m 2/m
 
66.01.01.08a Ferri-clinoholmquistite! []Li2Mg3(Fe3)2(Si8O22)(OH)2 C 2/m 2/m
 
66.01.01.08b Ferri-clinoferroholmquistite! []Li2(Fe2Fe3)Si8O22(OH)2 C 2/m 2/m
 
66.01.01.09 Sodic-ferripedrizite! Na(LiNa)(Fe2Mg2Li)Si8O22(OH,F)2 C 2/m 2/m
 
66.01.01.09a Ferripedrizite! NaLi2(Fe2Mg2Li)Si8O22(OH)2 C 2/m 2/m
 
66.01.01.09b Sodic-ferri-ferropedrizite! NaLi2(Fe2Fe3)Si8O22(OH)2 C 2/m 2/m
 
66.01.01.09c Fluoro-sodic-pedrizite! NaLi2(Mg2Al2Li)S5Si8O22F2 C 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.DE.05 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DE -Inosilicates with 2-periodic double chains, Si4O11; amphibole family
 
09.DE.05 Ferro-anthophyllite []Fe7Si8O22(OH)2 P nma 2/m 2/m 2/m
 
09.DE.05 Anthophyllite []Mg7Si8O22(OH)2 P nma 2/m 2/m 2/m
 
09.DE.05 Ferrogedrite []Fe5Al2Si6Al2O22(OH)2 P nma 2/m 2/m 2/m
 
09.DE.05 Gedrite []Mg5Al2Si6Al2O22(OH)2 P nma 2/m 2/m 2/m
 
09.DE.05 Ferroholmquistite [](Li2Fe3Al2)Si8O22(OH)2 P nma 2/m 2/m 2/m
 
09.DE.05 Holmquistite [](Li2Mg3Al2)Si8O22(OH)2 P nma 2/m 2/m 2/m
 
09.DE.05 Cummingtonite []Mg7Si8O22(OH)2 C 2/m 2/m
 
09.DE.05 Clinoferroholmquistite [](Li2Fe3Al2)Si8O22(OH)2 C 2/m 2/m
 
09.DE.05 Grunerite []Fe7Si8O22(OH)2 C 2/m 2/m
 
09.DE.05 Magnesiocummingtonite (Mg,Fe)7Si8O22(OH)2 C 2/m 2/m
 
09.DE.05 Manganogrunerite []Mn2Fe5Si8O22(OH) C 2/m 2/m
 
09.DE.05 Magnesioanthophyllite? (Mg,Fe)7Si8O22(OH)2 P nma 2/m 2/m 2/m
 
09.DE.05 Protomangano-ferro-anthophyllite! (Mn,Fe)2(Fe,Mg)5(Si4O11)2(OH)2 Pnmn 2/m 2/m 2/m
 
09.DE.05 Sodicgedrite NaMg6AlSi6Al2O22(OH)2 P nma 2/m 2/m 2/m
 
09.DE.05 Sodic-ferro-anthophyllite! NaFe7Si8O22(OH)2 P nma 2/m 2/m 2/m
 
09.DE.05 Sodic-ferrogedrite! NaFe6AlSi6Al2O22(OH)2 P nma 2/m 2/m 2/m
 
09.DE.05 Sodicanthophyllite NaMg7Si8O22(OH)2 P nma 2/m 2/m 2/m
 
09.DE.05 Permanganogrunerite! []Mn4(Fe)3(Si8O22)(OH)2 C 2/m 2/m
 
09.DE.05 Protoferro-anthophyllite! (Fe,Mn)2(Fe,Mg)5(Si4O11)2(OH)2 Pnmn 2/m 2/m 2/m
 
09.DE.05 Fluoro-sodic-pedrizite! NaLi2(Mg2Al2Li)S5Si8O22F2 C 2/m 2/m
 
09.DE.05 Sodic-ferri-ferropedrizite! NaLi2(Fe2Fe3)Si8O22(OH)2 C 2/m 2/m
 
09.DE.05 Manganocummingtonite Na(Na,Mn)2(Mg4,Fe)5Si8O22(OH)2 C 2/m 2/m
 
09.DE.05 Protoanthophyllite! (Mg,Fe)7Si8O22(OH)2 Pnmn 2/m 2/m 2/m
 
09.DE.05 Ferri-clinoferroholmquistite! []Li2(Fe2Fe3)Si8O22(OH)2 C 2/m 2/m
 
09.DE.05 Sodic-ferripedrizite! Na(LiNa)(Fe2Mg2Li)Si8O22(OH,F)2 C 2/m 2/m
 
09.DE.05 Ferripedrizite! NaLi2(Fe2Mg2Li)Si8O22(OH)2 C 2/m 2/m
 

Other Ferri-clinoferroholmquistite Information

Help on References: References: NAME( CanMin, v 41, p 1345) PHYS. PROP.(CanMin, v 41, p 1345) OPTIC PROP.(CanMin, v 41, p 1345)
Help on See Also: See Also: Links to other databases for Ferri-clinoferroholmquistite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Print or Cut-and-Paste your Ferri-clinoferroholmquistite Specimen Label here :

Ferri-clinoferroholmquistite

[ ]Li2(Fe+++2Fe++3)Si8O22(OH)2
Dana No: 66.01.01.08b Strunz No: 09.DE.05
Locality:

 

Notes: