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Suhailite Mineral Data

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General Suhailite Information

Help on Chemical  Formula: Chemical Formula: (NH4)Fe3(Si3Al)O10(OH)2
Help on Composition: Composition: Molecular Weight = 445.65 gm
   Potassium   3.07 %  K     3.70 % K2O
   Sodium      0.36 %  Na    0.49 % Na2O
   Calcium     0.36 %  Ca    0.50 % CaO
   Magnesium   3.87 %  Mg    6.42 % MgO
   Titanium    2.36 %  Ti    3.94 % TiO2
   Manganese   0.12 %  Mn    0.16 % MnO
   Aluminum   10.60 %  Al   20.02 % Al2O3
   Iron       16.67 %  Fe   21.44 % FeO
   Silicon    16.83 %  Si   36.00 % SiO2
   Hydrogen    0.50 %  H      -   % Calc as (NH4)2O
   Hydrogen    0.45 %  H     4.04 % H2O
   Nitrogen    1.73 %  N     3.21 % (NH4)2O
   Oxygen     43.08 %  O
             ______        ______ 
             100.00 %       99.93 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca0.04Na0.07K0.35(NH4)0.55Al0.42Ti0.22Fe2+1.33Mn2+0.01Mg0.71Si2.67Al1.33O10OH2
Help on Environment: Environment: Found in polymetamorphic pelitic gneisses and transitional schists-gneisses from the uppermost tectonic unit of the Alpuj�rride Complex. Ammonium-bearing trioctahedral mica, Mica gr oup.
Help on IMA Status: IMA Status: Approved IMA 2007 (Dana # Added)
Help on Locality: Locality: Fuengirola, M�laga Province (Betic Cordillera), Spain. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Not stated in paper.
Help on Synonym: Synonym: IMA2007-040
 

Suhailite Image

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  Suhailite

Comments: PPL thin-section showing unoriented grains of graphite-rich golden suhailite. Suh - suhalite, Ann - annite, Sil - sillimanite. (AmMin v94:211).
Location: Betic Cordillera gneisses (Spain). Scale: See Image.
© American Mineralogist

Suhailite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5757:1:1.1318
Help on Cell Dimensions: Cell Dimensions: a = 5.296, b = 9.199, c = 10.412, Z = 2; beta = 99.991° V = 499.56 Den(Calc)= 2.96
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m?
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 10.44(1)(001 ), 3.485(0.3)(003 ), 2.644(0.11)(130 ),2.088(0.08)(005 ), 2.613(0.08)(004 ), 1.533(0.06)(060 ), 5.22(0.05)(002 ), 4.54(0.04)(110 ), 4.6(0.04)(020 ),
 

Physical Properties of Suhailite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Golden yellow.
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Vitreous (Glassy)
 

Optical Properties of Suhailite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= -0.043 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2171,KC= 0.2083
Ncalc = 1.62
Help on Optical Data: Optical Data: Biaxial (-), a=1.624, b=1.652, g=1.652, bire=0.0280, 2V(Calc)=0, 2V(Meas)=0-4. Dispersion dispersion not observed.
 

Calculated Properties of Suhailite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.93 gm/cc
note: Specific Gravity of Suhailite =2.96 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PESuhailite = 6.72 barns/electron
U=PESuhailite x relectron= 19.70 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 43.84 (Gamma Ray American Petroleum Institute Units)
Concentration of Suhailite per GRapi unit = 2.28 (%)

Estimated Radioactivity from Suhailite - barely detectable

 

Suhailite Classification

Help on  Dana Class: Dana Class: 71.02.02b.18 (71)Phyllosilicate Sheets of Six-Membered Rings
  (71.02)with 2:1 Layers
  (71.02.02b)Mica Group (Biotite subgroup)
 
71.02.02b.01 Phlogopite KMg3(Si3Al)O10(F,OH)2 C 2/m 2/m
 
71.02.02b.01a Tetraferriphlogopite! KMg3FeSi3O10(OH)2 2/m
 
71.02.02b.01b Shirozulite! KMn3(AlSi3)O10(OH,F)2 C 2/m 2/m
 
71.02.02b.01c Fluorophlogopite! KMg3(AlSi3)O10F2 C 2/m 2/m
 
71.02.02b.02 Biotite* K(Mg,Fe)3[AlSi3O10(OH,F)2 C 2/m 2/m
 
71.02.02b.03 Annite KFe3AlSi3O10(OH,F)2 C 2/m 2/m
 
71.02.02b.03a Fluorannite! KFe3AlSi3O10F2 C 2/m 2/m
 
71.02.02b.04 Tetraferriannite K(Fe,Mg)3(Fe,Al)Si3O10(OH)2 C 2/m 2/m
 
71.02.02b.05 Siderophyllite KFe2Al(Al2Si2)O10(F,OH)2 C 2/m 2/m
 
71.02.02b.05a Eastonite! KMg2Al[Al2Si2O10](OH)2 2/m
 
71.02.02b.06 Hendricksite K(Zn,Mg,Mn)3Si3AlO10(OH)2 C 2/m 2/m
 
71.02.02b.07 Lepidolite K(Li,Al)3(Si,Al)4O10(F,OH)2 C 2/m,Cm Mono
 
71.02.02b.08 Polylithionite KLi2AlSi4O10(F,OH)2 C 2/m 2/m
 
71.02.02b.08a Trilithionite! KLi1.5Al1.5AlSi3O10F2 C 2/m 2/m
 
71.02.02b.08b Sokolovaite! CsLi2AlSi4O10F2 C 2/m, C 2 or Cm Mono
 
71.02.02b.09 Tainiolite KLiMg2Si4O10F2 C 2/m 2/m
 
71.02.02b.10 Zinnwaldite KLiFeAl(AlSi3)O10(F,OH)2 C 2/m 2/m
 
71.02.02b.11 Norrishite K(Mn2Li)Si4O10(O)2 C 2/m 2/m
 
71.02.02b.12 Masutomilite K(Li,Al,Mn)3[(Si,Al)4O10](F,OH)2 C 2/m 2/m
 
71.02.02b.13 Aspidolite NaMg3AlSi3O10(OH)2 C 2/m 2/m
 
71.02.02b.14 Wonesite (Na,K).5(Mg,Fe,Al)3(Si,Al)4O10(OH,F)2 C 2/m 2/m
 
71.02.02b.15 Preiswerkite NaMg2Al3Si2O10(OH)2 C 2/m 2/m
 
71.02.02b.16 Ephesite NaLiAl2(Al2Si2)O10(OH)2 C 2/c 2/m
 
71.02.02b.18 Suhailite! (NH4)Fe3(Si3Al)O10(OH)2 C 2/m? 2/m
Help on  Strunz Class: Strunz Class: 09.EC.20 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EC -Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
 
09.EC.20 Annite KFe3AlSi3O10(OH,F)2 C 2/m 2/m
 
09.EC.20 Biotite* K(Mg,Fe)3[AlSi3O10(OH,F)2 C 2/m 2/m
 
09.EC.20 Hendricksite K(Zn,Mg,Mn)3Si3AlO10(OH)2 C 2/m 2/m
 
09.EC.20 Ephesite NaLiAl2(Al2Si2)O10(OH)2 C 2/c 2/m
 
09.EC.20 Aspidolite NaMg3AlSi3O10(OH)2 C 2/m 2/m
 
09.EC.20 Lepidolite K(Li,Al)3(Si,Al)4O10(F,OH)2 C 2/m,Cm Mono
 
09.EC.20 Preiswerkite NaMg2Al3Si2O10(OH)2 C 2/m 2/m
 
09.EC.20 Masutomilite K(Li,Al,Mn)3[(Si,Al)4O10](F,OH)2 C 2/m 2/m
 
09.EC.20 Wonesite (Na,K).5(Mg,Fe,Al)3(Si,Al)4O10(OH,F)2 C 2/m 2/m
 
09.EC.20 Polylithionite KLi2AlSi4O10(F,OH)2 C 2/m 2/m
 
09.EC.20 Phlogopite KMg3(Si3Al)O10(F,OH)2 C 2/m 2/m
 
09.EC.20 Norrishite K(Mn2Li)Si4O10(O)2 C 2/m 2/m
 
09.EC.20 Siderophyllite KFe2Al(Al2Si2)O10(F,OH)2 C 2/m 2/m
 
09.EC.20 Fluorannite! KFe3AlSi3O10F2 C 2/m 2/m
 
09.EC.20 Shirokshinite! K(NaMg2)Si4O10F2 C 2/m 2/m
 
09.EC.20 Zinnwaldite KLiFeAl(AlSi3)O10(F,OH)2 C 2/m 2/m
 
09.EC.20 Eastonite! KMg2Al[Al2Si2O10](OH)2 2/m
 
09.EC.20 Tetraferriannite K(Fe,Mg)3(Fe,Al)Si3O10(OH)2 C 2/m 2/m
 
09.EC.20 Tetraferriphlogopite! KMg3FeSi3O10(OH)2 2/m
 
09.EC.20 Trilithionite! KLi1.5Al1.5AlSi3O10F2 C 2/m 2/m
 
09.EC.20 Sokolovaite! CsLi2AlSi4O10F2 C 2/m, C 2 or Cm Mono
 
09.EC.20 Shirozulite! KMn3(AlSi3)O10(OH,F)2 C 2/m 2/m
 
09.EC.20 Suhailite! (NH4)Fe3(Si3Al)O10(OH)2 C 2/m? 2/m
 
09.EC.20 Fluorophlogopite! KMg3(AlSi3)O10F2 C 2/m 2/m
 

Other Suhailite Information

Help on References: References: NAME( AmMin, v94:210) PHYS. PROP.(AmMin, v94:210) OPTIC PROP.(AmMin, v94:210)
Help on See Also: See Also: Links to other databases for Suhailite :
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 Suhailite Specimen Label here :

Suhailite

(NH4)Fe3(Si3Al)O10(OH)2
Dana No: 71.02.02b.18 Strunz No: 09.EC.20
Locality:

 

Notes:

 

 
   
 


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