Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportAdd Glossary Item
StatisticsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Celadonite

This page is currently not sponsored. Click here to sponsor this page.
Formula:
K(Mg,Fe2+)Fe3+(Si4O10)(OH)2
System:
Monoclinic
Colour:
Blue-green, olive green, ...
Hardness:
2
Member of:
Name:
Named after the French "céladon" for "sea-green", its common colour.
Mica Group.

The Mg analogue of ferroceladonite.

Classification of Celadonite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
9.EC.15

9 : SILICATES (Germanates)
E : Phyllosilicates
C : Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
71.2.2a.6

71 : PHYLLOSILICATES Sheets of Six-Membered Rings
2 : Sheets of 6-membered rings with 2:1 layers
14.24.3

14 : Silicates not Containing Aluminum
24 : Silicates of Fe, Mg and alkalis
mindat.org URL:
http://www.mindat.org/min-926.html
Please feel free to link to this page.

First Recorded Occurrence of Celadonite

Year of Discovery:
1847

Occurrences of Celadonite

Geological Setting:
Replaces ferromagnesian minerals in altered intermediate to mafic igneous rocks, zeolite grade metamorphic rocks, amygdaloidal fillings in basalts and andesites.

Physical Properties of Celadonite

Waxy, Dull, Earthy
Diaphaneity (Transparency):
Translucent
Colour:
Blue-green, olive green, apple green
Hardness (Mohs):
2
Tenacity:
Fragile
Cleavage:
Perfect
perfect on {001}
Comment:
Friable to unctuous
Density:
2.95 - 3.05 g/cm3 (Measured)    3 g/cm3 (Calculated)

Crystallography of Celadonite

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Cell Parameters:
a = 5.23(2) Å, b = 9.06(1) Å, c = 10.13(2) Å
β = 100.92°
Ratio:
a:b:c = 0.577 : 1 : 1.118
Unit Cell Volume:
V 471.31 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Minute micaceous scales or earthy aggregates
Comment:
May be Class 2 Space group C2

Optical Data of Celadonite

Type:
Biaxial (-)
RI values:
nα = 1.606 - 1.625 nβ = 1.630 - 1.662 nγ = 1.579 - 1.661
2V:
Measured: 5° to 8°
Birefringence:
0.030
Max Birefringence:
δ = 0.027
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v moderate
Pleochroism:
Visible
Comments:
Yellow-green
Blue-green

Chemical Properties of Celadonite

Formula:
K(Mg,Fe2+)Fe3+(Si4O10)(OH)2
Essential elements:
All elements listed in formula:
Common Impurities:
Mn,Ca,Na

Relationship of Celadonite to other Species

Series:
Forms a series with Muscovite (see here)
Member of:
Other Members of Group:
AluminoceladoniteK(Mg,Fe2+)Al(Si4O10)(OH)2
Anandite(Ba,K)(Fe2+,Mg)3((Si,Al,Fe)4O10)(S,OH)2
AnniteKFe32+(AlSi3O10)(OH)2
Annite-Phlogopite Series
AspidoliteNaMg3(AlSi3O10)(OH)2
BalestraiteKLi2V5+Si4O12
Biotite
BityiteLiCaAl2(AlBeSi2O10)(OH)2
BoromuscoviteKAl2(BSi3O10)(OH)2
Brammallite(Na,H3O)(Al,Mg,Fe)2((Si,Al)4O10)(OH)2
Chernykhite(Ba,Na)(V3+,Al,Mg)2((Si,Al)4O10)(OH)2
ChromceladoniteK(Mg,Fe2+)(Cr,Al)(Si4O10)(OH)2
ChromphylliteK(Cr,Al)2(AlSi3O10)(OH,F)2
ClintoniteCa(Mg,Al)3(Al3SiO10)(OH)2
EastoniteKMg2Al(Al2Si2O10)(OH)2
EphesiteLiNaAl2(Al2Si2O10)(OH)2
FerroaluminoceladoniteK(Fe2+,Mg)(Al,Fe3+)(Si4O10)(OH)2
FerroceladoniteK(Fe2+,Mg)(Fe3+,Al)(Si4O10)(OH)2
Ferrokinoshitalite(Ba,K)(Fe2+,Mg)3(Al2Si2O10)(OH,F)2
FluoranniteKFe32+(AlSi3O10)(F,OH)2
FluorophlogopiteKMg3(AlSi3O10)(F,OH)2
Ganterite(Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2
Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al,Fe3+)4O10)(OH)2
HendricksiteK(Zn,Mg,Mn2+)3(AlSi3O10)(OH)2
IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Kinoshitalite(Ba,K)(Mg,Mn2+,Al)3(Al2Si2O10)(OH)2
Lepidolite
LuanshiweiiteKLiAl1.5□0.5(Si3.5Al0.5)O10(OH,F)2
MargariteCaAl2(Al2Si2O10)(OH)2
Masutomilite(K,Rb)(Li,Mn3+,Al)3(AlSi3O10)(F,OH)2
Montdorite(K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4
MuscoviteKAl2(AlSi3O10)(OH)2
Muscovite-Celadonite Series
NanpingiteCsAl2(AlSi3O10)(OH,F)2
Natro-glauconite(Na,K)(Fe3+,Al,Mg)2((Si,Al)4O10)(OH)2
NorrishiteKLiMn23+(Si4O10)O2
Oxykinoshitalite(Ba,K)(Mg,Ti,Fe3+,Fe2+)3((Si,Al)4O10)(O,OH,F)2
OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
ParagoniteNaAl2(AlSi3O10)(OH)2
Phengite
PhlogopiteKMg3(AlSi3O10)(OH,F)2
PolylithioniteKLi2Al(Si4O10)(F,OH)2
PreiswerkiteNaMg2Al(Al2Si2O10)(OH)2
RoscoeliteK(V3+,Al)2(AlSi3O10)(OH)2
ShirokshiniteKNaMg2(Si4O10)F2
ShirozuliteK(Mn2+,Mg)3(AlSi3O10)(OH)2
SiderophylliteKFe22+Al(Al2Si2O10)(OH)2
SokolovaiteCsLi2Al(Si4O10)F2
Suhailite(NH4)Fe32+(AlSi3O10)(OH)2
TainioliteKLiMg2(Si4O10)F2
TetraferrianniteKFe32+((Fe3+,Al)Si3O10)(OH)2
TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
Tobelite(NH4,K)Al2(AlSi3O10)(OH)2
TrilithioniteK(Li1.5Al1.5)(AlSi3O10)(F,OH)2
VoloshiniteRb(LiAl1.51.5)(Al0.5Si3.5)O10F2
Wonesite(Na,K)(Mg,Fe,Al)6((Al,Si)4O10)2(OH,F)4
YangzhumingiteKMg2.5(Si4O10)F2
ZinnwalditeKLiFe2+Al(AlSi3O10)(F,OH)2
9.EC.05Minnesotaite(Fe,Mg)3(Si4O10)(OH)2
9.EC.05TalcMg3(Si4O10)(OH)2
9.EC.05Willemseite(Ni,Mg)3(Si4O10)(OH)2
9.EC.10FerripyrophylliteFe23+(Si4O10)(OH)2
9.EC.10PyrophylliteAl2(Si4O10)(OH)2
9.EC.15BoromuscoviteKAl2(BSi3O10)(OH)2
9.EC.15Chernykhite(Ba,Na)(V3+,Al,Mg)2((Si,Al)4O10)(OH)2
9.EC.15Montdorite(K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4
9.EC.15MuscoviteKAl2(AlSi3O10)(OH)2
9.EC.15NanpingiteCsAl2(AlSi3O10)(OH,F)2
9.EC.15ParagoniteNaAl2(AlSi3O10)(OH)2
9.EC.15RoscoeliteK(V3+,Al)2(AlSi3O10)(OH)2
9.EC.15Tobelite(NH4,K)Al2(AlSi3O10)(OH)2
9.EC.15AluminoceladoniteK(Mg,Fe2+)Al(Si4O10)(OH)2
9.EC.15ChromphylliteK(Cr,Al)2(AlSi3O10)(OH,F)2
9.EC.15FerroaluminoceladoniteK(Fe2+,Mg)(Al,Fe3+)(Si4O10)(OH)2
9.EC.15FerroceladoniteK(Fe2+,Mg)(Fe3+,Al)(Si4O10)(OH)2
9.EC.15ChromceladoniteK(Mg,Fe2+)(Cr,Al)(Si4O10)(OH)2
9.EC.15TainioliteKLiMg2(Si4O10)F2
9.EC.15Ganterite(Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2
9.EC.20AnniteKFe32+(AlSi3O10)(OH)2
9.EC.20EphesiteLiNaAl2(Al2Si2O10)(OH)2
9.EC.20HendricksiteK(Zn,Mg,Mn2+)3(AlSi3O10)(OH)2
9.EC.20Masutomilite(K,Rb)(Li,Mn3+,Al)3(AlSi3O10)(F,OH)2
9.EC.20NorrishiteKLiMn23+(Si4O10)O2
9.EC.20PhlogopiteKMg3(AlSi3O10)(OH,F)2
9.EC.20PolylithioniteKLi2Al(Si4O10)(F,OH)2
9.EC.20PreiswerkiteNaMg2Al(Al2Si2O10)(OH)2
9.EC.20SiderophylliteKFe22+Al(Al2Si2O10)(OH)2
9.EC.20TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
9.EC.20FluorotetraferriphlogopiteKMg3(Fe3+Si3O10)F2
9.EC.20Wonesite(Na,K)(Mg,Fe,Al)6((Al,Si)4O10)2(OH,F)4
9.EC.20EastoniteKMg2Al(Al2Si2O10)(OH)2
9.EC.20TetraferrianniteKFe32+((Fe3+,Al)Si3O10)(OH)2
9.EC.20TrilithioniteK(Li1.5Al1.5)(AlSi3O10)(F,OH)2
9.EC.20FluoranniteKFe32+(AlSi3O10)(F,OH)2
9.EC.20ShirokshiniteKNaMg2(Si4O10)F2
9.EC.20ShirozuliteK(Mn2+,Mg)3(AlSi3O10)(OH)2
9.EC.20SokolovaiteCsLi2Al(Si4O10)F2
9.EC.20AspidoliteNaMg3(AlSi3O10)(OH)2
9.EC.20FluorophlogopiteKMg3(AlSi3O10)(F,OH)2
9.EC.20UM2004-49-SiO:AlCsFHKLi(Cs,K)(Al,Li)2.6((Si,Al)4O10)(F,OH)2
9.EC.20Suhailite(NH4)Fe32+(AlSi3O10)(OH)2
9.EC.20YangzhumingiteKMg2.5(Si4O10)F2
9.EC.20OrloviteKLi2Ti(Si4O10)OF
9.EC.20OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
9.EC.25Brammallite(Na,H3O)(Al,Mg,Fe)2((Si,Al)4O10)(OH)2
9.EC.30MargariteCaAl2(Al2Si2O10)(OH)2
9.EC.35Anandite(Ba,K)(Fe2+,Mg)3((Si,Al,Fe)4O10)(S,OH)2
9.EC.35BityiteLiCaAl2(AlBeSi2O10)(OH)2
9.EC.35ClintoniteCa(Mg,Al)3(Al3SiO10)(OH)2
9.EC.35Kinoshitalite(Ba,K)(Mg,Mn2+,Al)3(Al2Si2O10)(OH)2
9.EC.35Ferrokinoshitalite(Ba,K)(Fe2+,Mg)3(Al2Si2O10)(OH,F)2
9.EC.35Oxykinoshitalite(Ba,K)(Mg,Ti,Fe3+,Fe2+)3((Si,Al)4O10)(O,OH,F)2
9.EC.35FluorokinoshitaliteBaMg3(Al2Si2O10)F2
9.EC.40Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
9.EC.40Kurumsakite(Zn,Ni,Cu)8Al8V25+Si5O35 · 27H2O (?)
9.EC.40Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
9.EC.40NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
9.EC.40VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2O
9.EC.40Yakhontovite(Ca,Na)0.5(Cu,Fe,Mg)2(Si4O10)(OH)2 · 3H2O
9.EC.45HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2
9.EC.45SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
9.EC.45SauconiteNa0.3Zn3((Si,Al)4O10)(OH)2 · 4H2O
9.EC.45SpadaiteMgSiO2(OH)2 · H2O (?)
9.EC.45Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
9.EC.45SwineforditeLi(Al,Li,Mg)4((Si,Al)4O10)2(OH,F)4 · nH2O
9.EC.45ZincsiliteZn3(Si4O10)(OH)2 · 4H2O
9.EC.45FerrosaponiteCa0.3(Fe2+,Mg,Fe3+)3((Si,Al)4O10)(OH)2 · 4H2O
9.EC.50Vermiculite(Mg,Fe,Al)3((Al,Si)4O10)(OH)2 · 4H2O
9.EC.55Baileychlore(Zn,Fe,Al,Mg)6((Si,Al)4O10)(OH)8
9.EC.55Chamosite(Fe2+,Mg)5Al(AlSi3O10)(OH)8
9.EC.55Clinochlore(Mg,Fe2+)5Al(AlSi3O10)(OH)8
9.EC.55Cookeite(Al2Li)Al2(AlSi3O10)(OH)8
9.EC.55FranklinfurnaceiteCa2Fe3+Mn32+Mn3+(Zn2Si2O10)(OH)8
9.EC.55Gonyerite(Mn2+,Mg)5Fe3+(Fe3+Si3O10)(OH)8
9.EC.55Nimite(Ni,Mg,Al)6((Si,Al)4O10)(OH)8
9.EC.55Orthochamosite(Fe2+,Mg,Fe3+)5Al(AlSi3O10)(OH,O)8
9.EC.55PennantiteMn52+Al(AlSi3O10)(OH)8
9.EC.55Sudoite(Mg,Fe2+)2Al3(AlSi3O10)(OH)8
9.EC.55DonbassiteAl4.33(AlSi3O10)(OH)8
9.EC.55GlagoleviteNa(Mg,Al)6(AlSi3O10)(OH,O)8
9.EC.55BorocookeiteLi1+3xAl4-x(BSi3O10)(OH)8
9.EC.60AliettiteCa0.2Mg6((Si,Al)8O20)(OH)4 · 4H2O
9.EC.60Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
9.EC.60DozyiteMg7Al2(Al2Si4O15)(OH)12
9.EC.60HydrobiotiteK(Mg,Fe2+)6((Si,Al)8O20)(OH)4 · nH2O
9.EC.60Karpinskite(Ni,Mg)2Si2O5(OH)2 (?)
9.EC.60KulkeiteMg8Al(AlSi7O20)(OH)10
9.EC.60LunijianlaiteLi0.7Al6.2(AlSi7O20)(OH,O)10
9.EC.60Rectorite(Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2O
9.EC.60Saliotite(Li,Na)Al3(AlSi3O10)(OH)5
9.EC.60TosuditeNa0.5(Al,Mg)6((Si,Al)8O18)(OH)12 · 5H2O
9.EC.60BrinrobertsiteNa0.3Al4(Si4O10)2(OH)4 · 3.5 H2O
9.EC.65Macaulayite(Fe,Al)24Si4O43(OH)2
9.EC.70BurckhardtitePb2Fe3+Te6+[AlSi3O8]O6
9.EC.75Ferrisurite(Pb,Ca)2.4Fe23+(Si4O10)(CO3)1.7(OH)3 · nH2O
9.EC.75Surite(Pb,Ca)3(Al,Fe2+,Mg)2((Si,Al)4O10)(CO3)2(OH)2
9.EC.75Niksergievite(Ba,Ca)2Al3(AlSi3O10)(CO3)(OH)6 · nH2O
9.EC.80KegelitePb8Al4(Si8O20)(SO4)2(CO3)4(OH)8
14.24.1Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
14.24.2Magnesio-arfvedsonite{Na}{Na2}{Mg4Fe3+}(Si8O22)(OH)2
14.24.4Roedderite(Na,K)2(Mg,Fe)5Si12O30
14.24.5Merrihueite(K,Na)2(Fe,Mg)5Si12O30
14.24.6ChayesiteK(Mg,Fe)4FeSi12O30

Other Names for Celadonite

Other Information

Not fluorescent in UV
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Celadonite

Reference List:
Hendricks, S.B. & C.S. Ross (1941) Chemical composition and genesis of glauconite and celadonite: American Mineralogist: 26: 683-708;

Wise, Wm. S. & H.P. Eugster (1964) Celadonite: synthesis, thermal stability and occurrence: American Mineralogist: 49: 1031-1083.

Foster, M.D. (1969) Studies of Celadonite and glauconite: USGS PP 614-F, 17 pp.

Dainyak, L.G., A.S. Bookin, V.A. Drits, and S.I. Tsipursky (1981) Mössbauer and electron diffraction study of cation distribution in celadonite: Acta Crystallographica: A-37 (supplement), C-362.

Slonimskaya, M.V., G. Besson, L.G. Daynyak, C. Tchoubar, and V.A. Drits (1986) The interpretation of the IR spectra of celadonites and glauconites in the region of OH-stretching frequencies: Clay Minerals: 21: 377-388.

Cipurskii, S.I. and V.A. Dric (1986) Refining the crystallographic structure of celadonite. Mineral. Zhurnal, 8(3), 32-40. (in Russian)

Dainyak, L.G., and V.A. Drits (1987) Interpretation of Mössbauer spectra of nontronite, celadonite, and glauconite: Clays and Clay Minerals: 35: 363-372.

Odin, G.S., A. Despairies, P.D. Fullagar, H. Bellon, A. Decarreau, F. Fröhlich, and M. Zelveder (1988) Nature and geological significance of celadonite. In G.S. Odin, Editor, Green Marine Clays: 45: 337-398. Developments in Sedimentology, Elsevier Science, Amsterdam.

Drits, V.A., L.G. Dainyak, F. Muller, G. Besson, and A. Manceau (1997) Isomorphous cation distribution in celadonites, glauconites and Fe-illites determined by infrared, Mössbauer and EXAFS spectroscopy: Clay Minerals: 32: 153-180.

Canadian Mineralogist: 36: 905-912.

Internet Links for Celadonite

Specimens:
The following Celadonite specimens are currently listed for sale on minfind.com.

Localities for Celadonite

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Mineral and/or Locality  
Copyright © mindat.org 1993-2015, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: March 5, 2015 00:21:08 Page generated: March 1, 2015 16:27:32