Mineralogy Database

Celadonite Mineral Data

Search Webmineral :
  
Advertisment

General Celadonite Information

Help on Chemical  Formula: Chemical Formula: K(Mg,Fe++)(Fe+++,Al)[Si4O10](OH)2
Help on Composition: Composition: Molecular Weight = 429.02 gm
   Potassium   9.11 %  K    10.98 % K2O
   Magnesium   4.53 %  Mg    7.52 % MgO
   Aluminum    0.63 %  Al    1.19 % Al2O3
   Iron       14.32 %  Fe    3.35 % FeO / 16.75 % Fe2O3
   Silicon    26.19 %  Si   56.02 % SiO2
   Hydrogen    0.47 %  H     4.20 % H2O
   Oxygen     44.75 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: KMg0.8Fe2+0.2Fe3+0.9Al0.1Si4O10(OH)2
Help on Environment: Environment: Vesicle lining and coatings in altered volcanic of intermediate to basic compositions under low grade metamorphism.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1847
Help on Locality: Locality: Mt. Baldo, near Verona, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the French 'celadon,' sea-green, in allusion to its common color.
Help on Name Pronunciation: Name Pronunciation: Celadonite + Pronunciation Say CELADONITE
Help on Synonym: Synonym: ICSD 200064
  PDF 17-521
 

Celadonite Image

Click Here for Larger   Image in a New Browser Window Images:
Click Here for Larger   Image

  Celadonite

Comments: Greenish masses of celadonite filling vesicles in basaltic rock.
Location: Socorro County, New Mexico, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Celadonite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5773:1:1.1271
Help on Cell Dimensions: Cell Dimensions: a = 5.223, b = 9.047, c = 10.197, Z = 2; beta = 100.433° V = 473.87 Den(Calc)= 3.01
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): 2.58(1), 4.53(0.85), 3.64(0.8),
 

Physical Properties of Celadonite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Gray green, Bluish green.
Help on Density: Density: 2.95 - 3.05, Average = 3
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: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite).
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Earthy (Dull)
Help on Streak: Streak: greenish white
 

Optical Properties of Celadonite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.069 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.072 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2123,KPDmeas= 0.2131,KC= 0.2289
Ncalc = 1.68 - 1.7
Help on Optical Data: Optical Data: Biaxial (-), a=1.606-1.644, b=1.63-1.662, g=1.63-1.663, bire=0.0190-0.0240, 2V(Calc)=0-26, 2V(Meas)=small.
Help on Pleochroism (x): Pleochroism (x): yellowish green or yellowish green.
Help on Pleochroism (y): Pleochroism (y): green or emerald green.
Help on Pleochroism (z): Pleochroism (z): green or emerald green.
 

Calculated Properties of Celadonite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.97 gm/cc
note: Specific Gravity of Celadonite =3.00 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PECeladonite = 6.26 barns/electron
U=PECeladonite x relectron= 18.60 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 130.24 (Gamma Ray American Petroleum Institute Units)
Concentration of Celadonite per GRapi unit = 0.77 (%)

Estimated Radioactivity from Celadonite - barely detectable

 

Celadonite Classification

Help on  Dana Class: Dana Class: 71.02.02a.06 (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 Celadonite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Celadonite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

Search for Celadonite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Celadonite :

Ask about Celadonite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaņol

Print or Cut-and-Paste your Celadonite Specimen Label here :

Celadonite

K(Mg,Fe++)(Fe+++,Al)[Si4O10](OH)2
Dana No: 71.02.02a.06 Strunz No: 09.EC.15
Locality:

 

Notes:

 

 
   
 


Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.