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Ferroceladonite Mineral Data

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General Ferroceladonite Information

Help on Chemical  Formula: Chemical Formula: K2Fe++Fe+++Si8O20(OH)4
Help on Composition: Composition: Molecular Weight = 802.59 gm
   Potassium   9.74 %  K    11.74 % K2O
   Iron       13.92 %  Fe    8.95 % FeO /  9.95 % Fe2O3
   Silicon    27.99 %  Si   59.89 % SiO2
   Hydrogen    0.50 %  H     4.49 % H2O
   Oxygen     47.84 %  O
             ______        ______ 
             100.00 %       95.02 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K2Fe2+Fe3+(Si8O20)(OH)4
Help on Environment: Environment: In an altered crystal-vitric tuff associated with ferroaluminoceladonite.
Help on IMA Status: IMA Status: Approved IMA 1995 (Dana # Added)
Help on Locality: Locality: Hokonui Hills, Southland, New Zealand. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from its composition (Fe++) and the French 'celadon,' sea-green, in allusion to its common color.
Help on Name Pronunciation: Name Pronunciation: Ferroceladonite + Pronunciation Say FERROCELADONITE
Help on Synonym: Synonym: IMA1995-018

Ferroceladonite Image

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Comments: Micaceous ferro celadonite, comprising schistose rock.
Location: Mikhailovsky Mine, Malkhan Range, Central Transbaikalia, Chita District, Siberia, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ferroceladonite 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)= 2.79
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 Ferroceladonite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Dark bluish green.
Help on Density: Density: 3.05
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 Ferroceladonite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.006 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.087 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2294,KPDmeas= 0.2098,KC= 0.211
Ncalc = 1.59 - 1.64
Help on Optical Data: Optical Data: Biaxial (?), b=1.64

Calculated Properties of Ferroceladonite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.02 gm/cc
note: Specific Gravity of Ferroceladonite =3.05 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEFerroceladonite = 6.17 barns/electron
U=PEFerroceladonite x relectron= 18.66 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 139.42 (Gamma Ray American Petroleum Institute Units)
Concentration of Ferroceladonite per GRapi unit = 0.72 (%)

Estimated Radioactivity from Ferroceladonite - barely detectable


Ferroceladonite Classification

Help on  Dana Class: Dana Class: 71.02.02a.06b (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 Ferroceladonite 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 Ferroceladonite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Athena
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Dana No: 71.02.02a.06b Strunz No: 09.EC.15





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