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Ferroaluminoceladonite Mineral Data

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General Ferroaluminoceladonite Information

Help on Chemical  Formula: Chemical Formula: K2Fe++2Al2Si8O20(OH)4
Help on Composition: Composition: Molecular Weight = 856.56 gm
   Potassium   9.13 %  K    11.00 % K2O
   Aluminum    6.30 %  Al   11.90 % Al2O3
   Iron       13.04 %  Fe   16.78 % FeO
   Silicon    26.23 %  Si   56.12 % SiO2
   Hydrogen    0.47 %  H     4.21 % H2O
   Oxygen     44.83 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K2Fe2+2Al2(Si8O20)(OH)4
Help on Environment: Environment: In an altered crystal-vitric tuff intergrown with ferroceladonite.
Help on IMA Status: IMA Status: Approved IMA 1995 (Dana # Added)
Help on Locality: Locality: Hokonui Hills, Southland, New Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from its composition (Fe++,Al) and the French 'celadon,' sea-green, in allusion to its common color.
Help on Synonym: Synonym: Ferro-aluminoceladonite - Renamed Ferroaluminoceladonite by Mineralogical Record, v39 (2008), p131
  IMA1995-019
 

Ferroaluminoceladonite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5787:1:1.1119
Help on Cell Dimensions: Cell Dimensions: a = 5.27, b = 9.106, c = 10.125, Z = 1; beta = 100.266° V = 478.11 Den(Calc)= 2.97
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): 3.321(1), 3.358(0.86), 3.09(0.6),
 

Physical Properties of Ferroaluminoceladonite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Dark bluish green.
Help on Density: Density: 2.93
Help on Diaphaneity: Diaphaneity: Translucent to opaque
Help on Fracture: Fracture: Earthy - Dull, clay-like fractures with no visible crystalline affinities, (e.g. howlite).
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Hardness: Hardness: 2-2.5 - Gypsum-Finger Nail
Help on Luster: Luster: Earthy (Dull)
Help on Streak: Streak: paler green
 

Optical Properties of Ferroaluminoceladonite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.022 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.008 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2104,KPDmeas= 0.2133,KC= 0.2088
Ncalc = 1.61 - 1.62
Help on Optical Data: Optical Data: Biaxial (?), b=1.625
 

Calculated Properties of Ferroaluminoceladonite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.94 gm/cc
note: Specific Gravity of Ferroaluminoceladonite =2.97 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEFerroaluminoceladonite = 5.95 barns/electron
U=PEFerroaluminoceladonite x relectron= 17.49 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 130.40 (Gamma Ray American Petroleum Institute Units)
Concentration of Ferroaluminoceladonite per GRapi unit = 0.77 (%)

Estimated Radioactivity from Ferroaluminoceladonite - barely detectable

 

Ferroaluminoceladonite Classification

Help on  Dana Class: Dana Class: 71.02.02a.06c (71)Phyllosilicate Sheets of Six-Membered Rings
  (71.02)with 2:1 Layers
  (71.02.02a)Mica Group (Muscovite subgroup)
 
71.02.02a.01 Muscovite KAl2(Si3Al)O10(OH,F)2 C 2/m 2/m
 
71.02.02a.02 Paragonite NaAl2(Si3Al)O10(OH)2 C 2/c,Cc Mono
 
71.02.02a.03 Chernykhite (Ba,Na)V,Al)2(Si,Al)4O10(OH)2 C 2/c 2/m
 
71.02.02a.04 Roscoelite K(V,Al,Mg)2AlSi3O10(OH)2 C 2/m 2/m
 
71.02.02a.05 Glauconite (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2 C 2/m 2/m
 
71.02.02a.06 Celadonite K(Mg,Fe)(Fe,Al)[Si4O10](OH)2 C 2/m 2/m
 
71.02.02a.06b Ferroceladonite! K2FeFeSi8O20(OH)4 C 2/m 2/m
 
71.02.02a.06c Ferroaluminoceladonite! K2Fe2Al2Si8O20(OH)4 C 2/m 2/m
 
71.02.02a.06d Aluminoceladonite! KAl(Mg,Fe)[]Si4O10(OH)2 2/m
 
71.02.02a.06e Chromceladonite! KCrMg(Si4O10)(OH)2 C 2 2
 
71.02.02a.07 Tobelite (NH4,K)Al2(Si3Al)O10(OH)2 C 2/m 2/m
 
71.02.02a.08 Nanpingite Cs(Al,Mg,Fe,Li)2(Si3Al)O10(OH,F)2 C 2/c 2/m
 
71.02.02a.09 Boromuscovite KAl2(Si3B)O10(OH,F)2 C 2/m 2/m
 
71.02.02a.10 Montdorite (K,Na)(Fe,Mn,Mg)2.5[Si4O10](F,OH)2 C 2/c 2/m
 
71.02.02a.11 Chromphyllite! (K,Ba)(Cr,Al)2[AlSi3O10](OH,F)2 C 2c 2/m
 
71.02.02a.12 Shirokshinite! K(NaMg2)Si4O10F2 C 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.EC.15 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EC -Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
 
09.EC.15 Boromuscovite KAl2(Si3B)O10(OH,F)2 C 2/m 2/m
 
09.EC.15 Celadonite K(Mg,Fe)(Fe,Al)[Si4O10](OH)2 C 2/m 2/m
 
09.EC.15 Chernykhite (Ba,Na)V,Al)2(Si,Al)4O10(OH)2 C 2/c 2/m
 
09.EC.15 Chromphyllite! (K,Ba)(Cr,Al)2[AlSi3O10](OH,F)2 C 2c 2/m
 
09.EC.15 Glauconite (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2 C 2/m 2/m
 
09.EC.15 Aluminoceladonite! KAl(Mg,Fe)[]Si4O10(OH)2 2/m
 
09.EC.15 Ferroaluminoceladonite! K2Fe2Al2Si8O20(OH)4 C 2/m 2/m
 
09.EC.15 Ferroceladonite! K2FeFeSi8O20(OH)4 C 2/m 2/m
 
09.EC.15 Montdorite (K,Na)(Fe,Mn,Mg)2.5[Si4O10](F,OH)2 C 2/c 2/m
 
09.EC.15 Nanpingite Cs(Al,Mg,Fe,Li)2(Si3Al)O10(OH,F)2 C 2/c 2/m
 
09.EC.15 Tobelite (NH4,K)Al2(Si3Al)O10(OH)2 C 2/m 2/m
 
09.EC.15 Roscoelite K(V,Al,Mg)2AlSi3O10(OH)2 C 2/m 2/m
 
09.EC.15 Muscovite KAl2(Si3Al)O10(OH,F)2 C 2/m 2/m
 
09.EC.15 Paragonite NaAl2(Si3Al)O10(OH)2 C 2/c,Cc Mono
 
09.EC.15 Tainiolite KLiMg2Si4O10F2 C 2/m 2/m
 
09.EC.15 Chromceladonite! KCrMg(Si4O10)(OH)2 C 2 2
 
09.EC.15 Ganterite! [Ba0.5(Na,K)0.5]Al2(Si2.5Al1.5O10)(OH)2 C 2/c 2/m
 

Other Ferroaluminoceladonite Information

Help on References: References: NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.82,p503-511,1997) OPTIC PROP.(Am.Min.,Vol.82,p503-511,1997)
Help on See Also: See Also: Links to other databases for Ferroaluminoceladonite :
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 Ferroaluminoceladonite Specimen Label here :

Ferroaluminoceladonite

K2Fe++2Al2Si8O20(OH)4
Dana No: 71.02.02a.06c Strunz No: 09.EC.15
Locality:

 

Notes:

 

 
   
 


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