Celadonite
A valid IMA mineral species - grandfathered
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About Celadonite
Formula:
K(MgFe3+◻)(Si4O10)(OH)2
Colour:
Blue-green, olive green, apple green
Lustre:
Waxy, Dull, Earthy
Hardness:
2
Specific Gravity:
2.95 - 3.05
Crystal System:
Monoclinic
Member of:
Name:
Named after the French "céladon" for "sea-green", its common colour.
Co-Type Localities:
Isostructural with:
Mica Group. The Mg analogue of ferroceladonite.
Some celadonites may be of hydrothermal origin.
Not to be confused with caledonite.
Some celadonites may be of hydrothermal origin.
Not to be confused with caledonite.
Unique Identifiers
Mindat ID:
926
Long-form identifier:
mindat:1:1:926:5
Similar Names
| Caledonite | A valid IMA mineral species - grandfathered | Pb5Cu2(SO4)3(CO3)(OH)6 |
IMA Classification of Celadonite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
KMgFe3+Si4O10(OH)2
Classification of Celadonite
9.EC.15
9 : SILICATES (Germanates)
E : Phyllosilicates
C : Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
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
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
14 : Silicates not Containing Aluminum
24 : Silicates of Fe, Mg and alkalis
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Cel | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Kretz (1983) | Kretz, R. (1983) Symbols of rock-forming minerals. American Mineralogist, 68, 277–279. | |
| Cel | Siivolam & Schmid (2007) | Siivolam, J. and Schmid, R. (2007) Recommendations by the IUGS Subcommission on the Systematics of Metamorphic Rocks: List of mineral abbreviations. Web-version 01.02.07. IUGS Commission on the Systematics in Petrology. download |
| Cel | Whitney & Evans (2010) | Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371 |
| Cel | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
| Cel | Warr (2020) | Warr, L.N. (2020) Recommended abbreviations for the names of clay minerals and associated phases. Clay Minerals, 55, 261–264 doi:10.1180/clm.2020.30 |
Physical Properties of Celadonite
Waxy, Dull, Earthy
Transparency:
Translucent
Colour:
Blue-green, olive green, apple green
Hardness:
2 on Mohs scale
Tenacity:
Fragile
Cleavage:
Perfect
perfect on {001}
perfect on {001}
Comment:
Friable to unctuous
Density:
2.95 - 3.05 g/cm3 (Measured) 3 g/cm3 (Calculated)
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
Surface Relief:
High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).
Relative to Canada balsam mounting medium (n ≈ 1.537).
This shows the grain boundary and Becke line effect under plane-polarised
light, based on the contrast between this mineral's average refractive
index and the mounting medium. It does not take into account mineral
colouration.
In focus
Interference Figure:
This shows the idealized biaxial acute bisectrix (Bxa) interference figure
- the conoscopic view for a grain cut perpendicular to the acute bisectrix, using
this mineral's 2V. The two small white dots mark the melatopes - the points
where the two optic axes emerge - and are shown only when they fall within the
field of view. The coloured bands are isochromatics, and the dark bands are
isogyres.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Dispersion:
r < v moderate
Pleochroism:
Visible
Comments:
Yellow-green
Blue-green
Blue-green
Chemistry of Celadonite
Mindat Formula:
K(MgFe3+◻)(Si4O10)(OH)2
Element Weights:
Common Impurities:
Mn,Ca,Na
Crystallography of Celadonite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 5.23(2) Å, b = 9.06(1) Å, c = 10.13(2) Å
β = 100.92°
β = 100.92°
Ratio:
a:b:c = 0.577 : 1 : 1.118
Unit Cell V:
471.31 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Minute micaceous scales or earthy aggregates
Comment:
May have space group C2.
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0005025 | Celadonite | Drits V A, Zviagina B B, McCarty D K, Salyn A L (2010) Factors responsible for crystal-chemical variations in the solid solutions from illite to aluminoceladonite and from glauconite to celadonite Sample Name: Z1 American Mineralogist 95 348-361 |  | 2010 | Russia | 0 | 293 |
| 0005024 | Celadonite | Drits V A, Zviagina B B, McCarty D K, Salyn A L (2010) Factors responsible for crystal-chemical variations in the solid solutions from illite to aluminoceladonite and from glauconite to celadonite Sample Name: TAIH American Mineralogist 95 348-361 | | 2010 | Taiheizan, Akita Prefecture, Japan | 0 | 293 |
| 0005023 | Celadonite | Drits V A, Zviagina B B, McCarty D K, Salyn A L (2010) Factors responsible for crystal-chemical variations in the solid solutions from illite to aluminoceladonite and from glauconite to celadonite Sample Name: 69 American Mineralogist 95 348-361 | | 2010 | Krivoi Rog mining district, Russia | 0 | 293 |
| 0019600 | Celadonite | Zhukhlistov A P (2005) Crystal structure of celadonite from the electron diffraction data Crystallography Reports 50 902-906 | 2005 | Krivoi mine, Khibiny Massif, Kola Peninsula, Russia | 0 | 293 | |
| 0014183 | Celadonite | Zhukhlistov A P, Zvyagin B B, Lazarenko E K, Pavlishin V I (1977) Refinement of the crystal structure of ferrous celadonite Kristallografiya 22 498-504 | 1977 | Krivoi mine, Khibiny Massif, Kola Peninsula, Russia | 0 | 293 | |
| 0019223 | Celadonite | Tsipurskij S I, Drits V A (1986) Refining the crystallographic structure of celadonite Mineralogiceskij Zhurnal 8 32-40 | 1986 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.580 Å | (100) |
| 4.53 Å | (85) |
| 3.635 Å | (80) |
| 3.087 Å | (80) |
| 2.678 Å | (75) |
| 2.402 Å | (75) |
| 3.318 Å | (70) |
Comments:
Wind River area, Washington, USA. Data from Wise and Eugster (1964).
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 3b: Earth’s earliest hydrosphere | >4.45 |
| 16 : Low-? aqueous alteration of Hadean subaerial lithologies (see also #23) | |
| Near-surface Processes | |
| 22 : Hydration and low-? subsurface aqueous alteration (see also #23) | |
| High-? alteration and/or metamorphism | |
| 32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits | |
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] |
Geological Setting:
Replaces ferromagnesian minerals in altered intermediate to mafic igneous rocks, zeolite grade metamorphic rocks, amygdaloidal fillings in basalts and andesites.
Type Occurrence of Celadonite
Synonyms of Celadonite
Other Language Names for Celadonite
Dutch:Celadoniet
Italian:Celadonite
Japanese:セラドン石
Russian:Селадонит
Simplified Chinese:绿鳞石
Spanish:Celadonita
Veronita
Veronita
Relationship of Celadonite to other Species
Member of:
Other Members of Celadonite Subgroup:
| Aluminoceladonite | K(MgAl◻)(Si4O10)(OH)2 | Mon. 2/m : B2/m |
| Chromceladonite | K(MgCr◻)(Si4O10)(OH)2 | Mon. 2 : B2 |
| Ferroaluminoceladonite | K(Fe2+Al◻)(Si4O10)(OH)2 | Mon. 2/m : B2/m |
| Ferroceladonite | K(Fe2+Fe3+◻)(Si4O10)(OH)2 | Mon. 2/m : B2/m |
| Manganiceladonite | K(MgMn3+◻)(Si4O10)(OH)2 | Mon. |
| 'Unnamed (V-analogue of Celadonite)' | K(MgV◻)(Si4O10)(OH)2 |
Forms a series with:
Common Associates
Associations Based on Photo Data:
| 213 photos of Celadonite associated with Calcite | CaCO3 |
| 175 photos of Celadonite associated with Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| 131 photos of Celadonite associated with 'Chalcedony' | SiO2 |
| 92 photos of Celadonite associated with Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| 90 photos of Celadonite associated with Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| 81 photos of Celadonite associated with Fluorapophyllite-(K) | KCa4(Si8O20)(F,OH) · 8H2O |
| 76 photos of Celadonite associated with Quartz | SiO2 |
| 58 photos of Celadonite associated with 'Amethyst' | SiO2 |
| 51 photos of Celadonite associated with Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| 40 photos of Celadonite associated with Hematite | Fe2O3 |
Related Minerals - Strunz-mindat Grouping
| 9.EC. | Meifuite | KFe6(Si7Al)O19(OH)4Cl2 |
| 9.EC. | Balestraite | KLi2V5+Si4O12 |
| 9.EC.05 | Talc | Mg3Si4O10(OH)2 |
| 9.EC.05 | Minnesotaite | Fe2+3Si4O10(OH)2 |
| 9.EC.05 | Willemseite | Ni3Si4O10(OH)2 |
| 9.EC.9.EC. | Voloshinite | Rb(LiAl1.5◻0.5)(Al0.5Si3.5)O10F2 |
| 9.EC.10 | Fluorluanshiweiite | KLiAl1.5(Si3.5Al0.5)O10F2 |
| 9.EC.10 | Garmite | CsLiMg2(Si4O10)F2 |
| 9.EC.10 | Gorbunovite | CsLi2(Ti,Fe)Si4O10(F,OH,O)2 |
| 9.EC.10 | Ferripyrophyllite | Fe3+Si2O5(OH) |
| 9.EC.10 | Manganiceladonite | K(MgMn3+◻)(Si4O10)(OH)2 |
| 9.EC.10 | Luanshiweiite | KLiAl1.5(Si3.5Al0.5)O10(OH)2 |
| 9.EC.10 | Pyrophyllite | Al2Si4O10(OH)2 |
| 9.EC.15 | Paragonite | NaAl2(AlSi3O10)(OH)2 |
| 9.EC.15 | Ferroaluminoceladonite | K(Fe2+Al◻)(Si4O10)(OH)2 |
| 9.EC.15 | Nanpingite | CsAl2(AlSi3O10)(OH,F)2 |
| 9.EC.15 | Ferroceladonite | K(Fe2+Fe3+◻)(Si4O10)(OH)2 |
| 9.EC.15 | Ganterite | Ba0.5(Na,K)0.5Al2(Si2.5Al1.5)O10(OH)2 |
| 9.EC.15 | Kreiterite | CsLi2Fe3+(Si4O10)F2 |
| 9.EC.15 | Roscoelite | KV3+2(AlSi3O10)(OH)2 |
| 9.EC.15 | Aluminoceladonite | K(MgAl◻)(Si4O10)(OH)2 |
| 9.EC.15 | Tobelite | (NH4)Al2(AlSi3O10)(OH)2 |
| 9.EC.15 | Tainiolite | KLiMg2(Si4O10)F2 |
| 9.EC.15 | Chromceladonite | K(MgCr◻)(Si4O10)(OH)2 |
| 9.EC.15 | Montdorite | KFe2+1.5Mn2+0.5Mg0.5Si4O10(F,OH)2 |
| 9.EC.15 | Chromphyllite | KCr2(AlSi3O10)(OH)2 |
| 9.EC.15 | Boromuscovite | KAl2(BSi3O10)(OH)2 |
| 9.EC.15 | 'UM1988-22-SiO:AlCaFFeHKLiMg' | KLiMgAl2Si3O10F2 |
| 9.EC.15 | Chernykhite | (Ba,Na)(V3+,Al,Mg)2((Si,Al)4O10)(OH)2 |
| 9.EC.15 | Muscovite | KAl2(AlSi3O10)(OH)2 |
| 9.EC.20 | Masutomilite | K(LiAlMn2+)[AlSi3O10]F2 |
| 9.EC.20 | Oxyphlogopite | K(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2 |
| 9.EC.20 | 'Chloroferrokinoshitalite' | (Ba,K)(Fe2+,Mg)3(Al2Si2O10)(Cl,OH,F)2 |
| 9.EC.20 | Siderophyllite | KFe2+2Al(Al2Si2O10)(OH)2 |
| 9.EC.20 | Sokolovaite | CsLi2Al(Si4O10)F2 |
| 9.EC.20 | Hendricksite | KZn3(Si3Al)O10(OH)2 |
| 9.EC.20 | Tetraferriphlogopite | KMg3(Si3Fe3+)O10(OH)2 |
| 9.EC.20 | Fluorannite | KFe2+3(Si3Al)O10F2 |
| 9.EC.20 | Aspidolite | NaMg3(AlSi3O10)(OH)2 |
| 9.EC.20 | Suhailite | (NH4)Fe2+3(AlSi3O10)(OH)2 |
| 9.EC.20 | Ephesite | NaLiAl2(Al2Si2O10)(OH)2 |
| 9.EC.20 | Norrishite | KLiMn3+2(Si4O10)O2 |
| 9.EC.20 | Phlogopite | KMg3(AlSi3O10)(OH)2 |
| 9.EC.20 | Yangzhumingite | KMg2.5(Si4O10)F2 |
| 9.EC.20 | Orlovite | KLi2Ti(Si4O10)OF |
| 9.EC.20 | Tetraferriannite | KFe2+3(Si3Fe3+)O10(OH)2 |
| 9.EC.20 | Shirokshinite | K(NaMg2)(Si4O10)F2 |
| 9.EC.20 | Trilithionite | K(Li1.5Al1.5)(AlSi3O10)(F,OH)2 |
| 9.EC.20 | Polylithionite | KLi2Al(Si4O10)(F,OH)2 |
| 9.EC.20 | Shirozulite | KMn2+3(Si3Al)O10(OH)2 |
| 9.EC.20 | Preiswerkite | NaMg2Al(Al2Si2O10)(OH)2 |
| 9.EC.20 | Fluorophlogopite | KMg3(Si3Al)O10F2 |
| 9.EC.20 | Wonesite | (Na,K,◻)(Mg,Fe,Al)6(Si,Al)8O20(OH,F)4 |
| 9.EC.20 | 'UM2004-49-SiO:AlCsFHKLi' | (Cs,K)(Al,Li)2.6((Si,Al)4O10)(F,OH)2 |
| 9.EC.20 | Fluorotetraferriphlogopite | KMg3(Fe3+Si3O10)F2 |
| 9.EC.20 | Annite | KFe2+3(AlSi3O10)(OH)2 |
| 9.EC.20 | Eastonite | KMg2Al(Al2Si2O10)(OH)2 |
| 9.EC.22 | 'Pimelite' | Ni3Si4O10(OH)2 · 4H2O |
| 9.EC.30 | Margarite | CaAl2(Al2Si2O10)(OH)2 |
| 9.EC.35 | Kinoshitalite | (Ba,K)(Mg,Mn2+,Al)3(Al2Si2O10)(OH)2 |
| 9.EC.35 | Ferrokinoshitalite | (Ba,K)(Fe2+,Mg)3(Al2Si2O10)(OH,F)2 |
| 9.EC.35 | Clintonite | CaAlMg2(SiAl3O10)(OH)2 |
| 9.EC.35 | Oxykinoshitalite | (Ba,K)(Mg,Ti,Fe3+,Fe2+)3((Si,Al)4O10)(O,OH,F)2 |
| 9.EC.35 | Fluorokinoshitalite | BaMg3(Al2Si2O10)F2 |
| 9.EC.35 | Bityite | CaLiAl2(AlBeSi2O10)(OH)2 |
| 9.EC.35 | Anandite | (Ba,K)(Fe2+,Mg)3((Si,Al,Fe)4O10)(S,OH)2 |
| 9.EC.40 | Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| 9.EC.40 | Beidellite | (Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O |
| 9.EC.40 | Volkonskoite | Ca0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2O |
| 9.EC.40 | Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| 9.EC.40 | Kurumsakite | (Zn,Ni,Cu)8Al8V5+2Si5O35 · 27H2O (?) |
| 9.EC.40 | Yakhontovite | (Ca,Na)0.5(Cu,Fe,Mg)2(Si4O10)(OH)2 · 3H2O |
| 9.EC.45 | Swinefordite | Li(Al,Li,Mg)3((Si,Al)4O10)2(OH,F)4 · nH2O |
| 9.EC.45 | Hectorite | Na0.3(Mg,Li)3(Si4O10)(F,OH)2 |
| 9.EC.45 | Zincsilite | Zn3Si4O10(OH)2 · 4H2O (?) |
| 9.EC.45 | Hanjiangite | Ba2CaV3+Al(H2AlSi3O12)(CO3)2F |
| 9.EC.45 | Spadaite | MgSiO2(OH)2 · H2O (?) |
| 9.EC.45 | Ferrosaponite | Ca0.3(Fe2+,Mg,Fe3+)3((Si,Al)4O10)(OH)2 · 4H2O |
| 9.EC.45 | Stevensite | (Ca,Na)xMg3-x(Si4O10)(OH)2 |
| 9.EC.45 | Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| 9.EC.45 | Sauconite | Na0.3Zn3((Si,Al)4O10)(OH)2 · 4H2O |
| 9.EC.50 | Vermiculite | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O |
| 9.EC.52 | 'Tarasovite' | near NaKAl11Si13O40(OH)9 · 3H2O |
| 9.EC.55 | Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| 9.EC.55 | Borocookeite | (LiAl4◻)[BSi3O10](OH)8 |
| 9.EC.55 | Franklinfurnaceite | Ca2Fe3+Mn2+3Mn3+(Zn2Si2O10)(OH)8 |
| 9.EC.55 | Pennantite | Mn2+5Al(AlSi3O10)(OH)8 |
| 9.EC.55 | Vakhrushevaite | Mg5Cr(AlSi3O10)(OH)8 |
| 9.EC.55 | Nimite | Ni5Al(AlSi3O10)(OH)8 |
| 9.EC.55 | Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| 9.EC.55 | Gonyerite | Mn2+5Fe3+(Fe3+Si3O10)(OH)8 |
| 9.EC.55 | Chamosite | Fe2+5Al(AlSi3O10)(OH)8 |
| 9.EC.55 | 'Orthochamosite' | (Fe2+,Mg,Fe3+)5Al(AlSi3O10)(OH,O)8 |
| 9.EC.55 | Baileychlore | Zn5Al(AlSi3O10)(OH)8 |
| 9.EC.55 | Sudoite | Mg2Al3(AlSi3O10)(OH)8 |
| 9.EC.55 | Glagolevite | Na(Mg,Al)6(AlSi3O10)(OH,O)8 |
| 9.EC.55 | Donbassite | Al4.33(AlSi3O10)(OH)8 |
| 9.EC.60 | Dozyite | Mg7Al2(Al2Si4O15)(OH)12 |
| 9.EC.60 | Rectorite | (Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2O |
| 9.EC.60 | Corrensite | (Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O |
| 9.EC.60 | Aliettite | Ca0.2Mg6((Si,Al)8O20)(OH)4 · 4H2O |
| 9.EC.60 | Karpinskite | (Ni,Mg)2Si2O5(OH)2 (?) |
| 9.EC.60 | Lunijianlaite | Li0.7Al6.2(AlSi7O20)(OH,O)10 |
| 9.EC.60 | Tosudite | Na0.5(Al,Mg)6((Si,Al)8O18)(OH)12 · 5H2O |
| 9.EC.60 | Hydrobiotite | K(Mg,Fe2+)6((Si,Al)8O20)(OH)4 · nH2O |
| 9.EC.60 | Saliotite | (Li,Na)Al3(AlSi3O10)(OH)5 |
| 9.EC.60 | Kulkeite | Mg8Al(AlSi7O20)(OH)10 |
| 9.EC.60 | Brinrobertsite | Na0.3Al4(Si4O10)2(OH)4 · 3.5 H2O |
| 9.EC.65 | Macaulayite | (Fe,Al)24Si4O43(OH)2 |
| 9.EC.70 | Burckhardtite | Pb2(Fe3+Te6+)[AlSi3O8]O6 |
| 9.EC.75 | Niksergievite | (Ba,Ca)2Al3(AlSi3O10)(CO3)(OH)6 · nH2O |
| 9.EC.75 | Ferrisurite | (Pb,Ca)2.4Fe3+2(Si4O10)(CO3)1.7(OH)3 · nH2O |
| 9.EC.75 | Surite | (Pb,Ca)3(Al,Fe2+,Mg)2((Si,Al)4O10)(CO3)2(OH)2 |
| 9.EC.80 | Kegelite | Pb8Al4(Si8O20)(SO4)2(CO3)4(OH)8 |
Radioactivity
Radioactivity:
| Element | % Content | Activity (Bq/kg) | Radiation Type |
|---|---|---|---|
| Uranium (U) | 0.0000% | 0 | α, β, γ |
| Thorium (Th) | 0.0000% | 0 | α, β, γ |
| Potassium (K) | 9.1867% | 2,848 | β, γ |
For comparison:
- Banana: ~15 Bq per fruit
- Granite: 1,000–3,000 Bq/kg
- EU exemption limit: 10,000 Bq/kg
Note: Risk is shown relative to daily recommended maximum exposure to non-background radiation of 1000 µSv/year. Note that natural background radiation averages around 2400 µSv/year so in reality these risks are probably extremely overstated! With infrequent handling and safe storage natural radioactive minerals do not usually pose much risk.
Interactive Simulator:
Note: The mass selector refers to the mass of radioactive mineral present, not the full specimen, also be aware that the matrix may also be radioactive, possibly more radioactive than this mineral!
Activity: –
| Distance | Dose rate | Risk |
|---|---|---|
| 1 cm | ||
| 10 cm | ||
| 1 m |
The external dose rate (D) from a radioactive mineral is estimated by summing the gamma radiation contributions from its Uranium, Thorium, and Potassium content, disregarding daughter-product which may have a significant effect in some cases (eg 'pitchblende'). This involves multiplying the activity (A, in Bq) of each element by its specific gamma ray constant (Γ), which accounts for its unique gamma emissions. The total unshielded dose at 1 cm is then scaled by the square of the distance (r, in cm) and multiplied by a shielding factor (μshield). This calculation provides a 'worst-case' or 'maximum risk' estimate because it assumes the sample is a point source and entirely neglects any self-shielding where radiation is absorbed within the mineral itself, meaning actual doses will typically be lower. The resulting dose rate (D) is expressed in microsieverts per hour (μSv/h).
D = ((AU × ΓU) + (ATh × ΓTh) + (AK × ΓK)) / r2 × μshield
Fluorescence of Celadonite
Not fluorescent in UV.
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Celadonite
mindat.org URL:
https://www.mindat.org/min-926.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Celadonite
Reference List:
Hendricks, Sterling B., Ross, Clarence S. (1941) Chemical composition and genesis of glauconite and celadonite. American Mineralogist, 26 (12) 683-708
Foster, M.D. (1969) Studies of celadonite and glauconite. Professional Paper 614f. US Geological Survey doi:10.3133/pp614f
Velde, Bruce (1972) Celadonite mica: Solid solution and stability. Contributions to Mineralogy and Petrology, 37 (3) Springer Science and Business Media LLC. 235-247 doi:10.1007/bf00373072
Buckley, H. A., Bevan, J. C., Brown, K. M., Johnson, L. R., Farmer, V. C. (1978) Glauconite and celadonite: two separate mineral species. Mineralogical Magazine, 42 (323) 373-382 doi:10.1180/minmag.1978.042.323.08
Slonimskaya, M. V., Besson, G., Dainyak, L. G., Tchoubar, C., Drits, V. A. (1986) Interpretation of the IR spectra of celadonites and glauconites in the region of OH-stretching frequencies. Clay Minerals, 21 (3) 377-388 doi:10.1180/claymin.1986.021.3.09
Daynyak, Lydia G. (1987) Interpretation of Mössbauer Spectra of Nontronite, Celadonite, and Glauconite. Clays and Clay Minerals, 35 (5) 363-372 doi:10.1346/ccmn.1987.0350506
Drits, V. A., Dainyak, L. G., Muller, F., Besson, G., Manceau, A. (1997) Isomorphous cation distribution in celadonites, glauconites and Fe-illites determined by infrared, Mössbauer and EXAFS spectroscopies. Clay Minerals, 32 (2) 153-179 doi:10.1180/claymin.1997.032.2.01
Rieder, M., Cavazzini, G., D’Yakonov, Y.S., Frank-Kamenetskii, V.A., Gottardt, G., Guggenheim, S., Koval, P.V., Muller, G., Neiva, A.M.R., Radoslovich, E.W., Robert, J.L., Sassi, F.P., Takeda, H., Weiss, Z., Wones, D.R. (1998) Nomenclature of the micas. The Canadian Mineralogist, 36 (3) 905-912
Baker, L. L., Rember, W. C., Sprenke, K. F., Strawn, D. G. (2012) Celadonite in continental flood basalts of the Columbia River Basalt Group. American Mineralogist, 97 (8) 1284-1290 doi:10.2138/am.2012.4129
Localities for Celadonite
Showing 477 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Algeria | |
| Semchaoui et al. (2016) |
Angola | |
| M. R. Portugal V. Ferreira |
Antarctica | |
| Bastias et al. (2013) |
| Bastias et al. (2013) +1 other reference | |
Argentina | |
| Bouhier et al. (2023) |
| Gustavo Fabian Carrillo specimens |
| Grundmann et al. (2018) |
| Brodtkorb (1999) |
| Brodtkorb (1999) | |
| Aliotta et al. (Santa Cruz) |
Armenia | |
| Pavel M. Kartashov (n.d.) |
Atlantic Ocean | |
| Lein et al. (2010) |
Australia | |
| Gilligan et al. (1992) |
| Knutson et al. (1979) |
| www.portergeo.com.au and ... | |
| Luis Martins visual ID |
| R Bottrill unpub. Data |
| Pryce et al. (1974) |
| Mineralogical Magazine 1984 48 : 263-266 |
Austria | |
| Niedermayr et al. (1995) |
| B. Kutil |
| Bernroider et al. (2017) |
| Strasser (1989) |
| Strasser (1989) |
| Neschen (n.d.) |
| Neschen (n.d.) |
Bolivia | |
| Alfredo Petrov (field trip, 23-08-2006) |
| Alfredo Petrov |
Bosnia and Herzegovina | |
| F. Mušija 2022. |
| Vokić (2024) |
Brazil | |
| Traversa et al. (2001) |
| Traversa et al. (2001) | |
| Zeolite collection of Volker Betz |
| Gilg et al. (2003) |
| Pereira et al. (2021) |
| Frank (2008) |
| Specimens in innumerable collections. | |
| King (n.d.) | |
| Haas (n.d.) | |
| Hervé Osana | |
| Bortolozzi (n.d.) | |
| Rodrigo Del Olmo Sato Collection |
| www.museumin.ufrgs.br (2003) | |
| Cornejo et al. (2009) |
Bulgaria | |
| Djurova et al. (1989) +2 other references |
| Marcus Voigt Collection |
| J.Ralph and P.Martynov site visit 2023 |
| Encheva |
| Hikov et al. (2011) |
| Terziev (1966) |
| Neues Jahrbuch für Mineralogie - Monatshefte et al. (10) |
Canada | |
| on an "erionite"/heulandite spec. from ... |
| Wojdak |
| Simandl et al. (1998) +1 other reference |
| Personal correspondance with Giles ... |
| Simandl et al. (1997) +1 other reference |
| King (n.d.) |
| King (n.d.) |
| King (n.d.) | |
| Vandall King |
| Ronnie Van Dommelen collection. |
| Terry Collett collection | |
| King (n.d.) |
| King (n.d.) |
| Sabina (1964) |
| Pe-Piper (2000) +1 other reference | |
| Sabina (1964) | |
| Ronnie Van Dommelen collection. | |
| Ronnie Van Dommelen collection. | |
| Van Dommelen (2023) | |
| Sabina (1964) | |
| Ronnie Van Dommelen collection. | |
| Pe-Piper (2000) | |
| Ronnie Van Dommelen collection. | |
Chile | |
| Vidal et al. (2022) |
| Petrov (n.d.) |
| fluid inclusion microthermometry et al. (1-2) +1 other reference |
| Anglo American plc |
China | |
| Shouting Zhang et al. (2004) |
| Zhang et al. (2023) |
| Luorong Tan (1986) |
| Wang et al. (2001) |
| |
| |
Cuba | |
| Acta Geológica Hispánica et al. (1-4) |
| Acta Geológica Hispánica et al. (1-4) |
Cyprus | |
| Rocks & Min.: 58:181. |
| Dmitry Tonkacheev |
| Antivachis (2015) |
Czech Republic | |
| GOLIÁŠ (2002) |
| Novák et al. (2013) +1 other reference |
| Dolníček et al. (2018) |
| Klomínský |
| Moravec +3 other references |
| Matýsek et al. (Vnější Západní Karpaty, Česká republika) |
| Kruťa (1949) |
| Kruťa (1949) | |
| Dolníček (2018) |
| Roman Gramblicka collection |
| Melka (2000) |
| Pauliš et al. (2022) |
| Černý P. |
| Černý P.: Příspěvek k mineralogii ... +3 other references |
| Cerny et al. (1964) | |
Dominican Republic | |
| Broda et al. (2022) |
| Krebs et al. (2008) |
Ecuador | |
| an NI 43-101 Technical Report prepared ... +1 other reference |
Faroe Islands | |
| Tranefors et al. (2025) |
| Knut Eldjarn spcimen & photo |
| Thomas Kleser findings |
| - (2011, November) |
| - (2011, November) |
| Petrov (n.d.) | |
| Jakob Aandstad collection |
| Thomas Kleser Collection |
| Thomas Kleser Collection +1 other reference |
| Zeolite collection of Volker Betz |
| Zeolite collection of Volker Betz |
| - (2011, November) |
France | |
| Queneau (n.d.) |
| Dudoignon et al. (1989) |
| Dudoignon et al. (1989) | |
| Giret et al. (1992) +1 other reference |
| Spandler +1 other reference |
| Lebocey et al. (2023) |
| "Les minéralisations associées au volcanisme andésitique de Biot-Villeneuve Loubet (Alpes Maritimes) |
Germany | |
| Walenta (1992) |
| Walenta (1992) |
| Wittern (2001) |
| Weiß (1990) |
| Walenta (1992) |
| Lorenz (2004) |
| Weiß (1990) |
| Betz (2019) |
| Mertz et al. (1990) |
| Dr. Günter Grundmann collection |
| Kohout (1998) |
| MÜLLER (1990) |
| Self found |
| Schneider (1991) |
| Schmeltzer (1977) |
| www.mineralienatlas.de (n.d.) |
| G. Müller |
| Thomas Kleser & Erwin Ecker Collections | |
| |
| Wittern (2001) |
| King (n.d.) |
Greece | |
| Kevrekidis et al. (2024) |
| Franz et al. (1992) |
Greenland | |
| Russ Rizzo collection via A. Petrov |
Hungary | |
| Bujtor et al. (2024) |
| Sándor et al. (2005) |
| Szakáll & Jánosi. Minerals of Hungary |
| Szakáll et al. (1996) |
| |
| Szakáll & Gatter: Hungarian Mineral ... | |
| Szakáll et al. (1996) |
| Szakáll et al. (1996) |
| Szakáll et al. (1996) |
| www.geomania.hu (2013) |
| Szakáll & Jánosi. Minerals of Hungary | |
| GEODA | |
| |
| GEODA/1997 | |
| Szakáll (2002) | |
| Szakáll & Jánosi. Minerals of Hungary |
| Szakáll & Gatter: Hungarian Mineral ... |
| Szakáll et al. (1996) +2 other references |
| Koch (1985) |
Iceland | |
| Betz (1981) |
| Zeolite collection of Volker Betz |
| Vanrusselt (2023) |
| Vanrusselt (2023) |
| Neuhoff et al. (1999) | |
| Weisenberger et al. (2009) | |
| Zeolite collection of Volker Betz |
India | |
| ... +1 other reference | |
| Raith et al. (2014) |
| Meteoritics & Planetary Science et al. (March 2003) |
| King (n.d.) | |
| Keith Compton collection |
| Götze et al. (2020) |
| Specimens received from Salim Tyebjee |
| BHAIRAWNATH T. WAKALE (visual ID ) |
| Lavinsky (n.d.) |
| Moore (2002) |
| Antonio Borrelli. | |
| Arliguie M collection | |
| Jewel Tunnel specimens | |
| Jordi Fabre photo |
| Gotze +7 other references | |
| Gotze +7 other references |
| Singh et al. (2022) |
| Arnav Khokarale Collection |
| Niedermayr et al. (2012) | |
| Singh et al. (2022) |
| Field collected by Yash Redkar | |
| Ottens et al. (2025) |
| Sahu et al. (2026) |
Indian Ocean | |
| Maciąg et al. (2019) | |
| D. Besse et al. |
Indonesia | |
| Suhendra et al. (2024) |
| Syaban et al. (2024) |
| Alfredo Petrov observations on material ... |
Iran | |
| Maziar Nazari (2005) |
| Esform et al. (2025) |
Italy | |
| Mattioli et al. (2025) |
| Piccoli et al. (2007) |
| Piccoli et al. (2007) |
| Bortolozzi (n.d.) |
| Russo et al. (2004) |
| Imma Punzo find & collection |
| Adorni F. (1997) |
| Bortolozzi et al. (2015) |
| Exel (1987) | |
| Bortolozzi (n.d.) |
| analysed by Dr. Anthony Kampf |
| Guastoni et al. (2002) |
| Antofilli et al. (1983) |
| Matteo Giai et al. (2023) |
| Eur. J. Mineral. |
| Eur. J. Mineral (1989) |
| Eur. J. Mineral (1989) |
| Eur. J. Mineral. | |
| Gamboni et al. (2021) |
| Bortolozzi (n.d.) | |
| Bortolozzi (n.d.) | |
| Fiori et al. (1999) |
| Bortolozzi (n.d.) | |
| Bortolozzi (n.d.) | |
| Colacicchi (1963) +1 other reference |
| Exel (1987) |
| De Michele (1974) +2 other references | |
| De Michele (1974) | |
| Exel (1987) |
| Exel (1987) |
| Gottardi G. (1965) | |
| Exel (1987) |
| Pedroni (1996) |
| Exel (1987) | |
| Exel (1987) | |
| Exel (1987) |
| reprint +9 other references | |
| De Michele (1974) |
| Bortolozzi (n.d.) |
| Exel (1987) |
| Buckley et al. (1978) |
| Exel (1987) | |
| Liebener et al. (1852) +2 other references | |
| Exel (1987) | |
| Exel (1987) | |
| Braccio (1951) |
| Garofalo et al. (2025) |
| De Michele (1974) |
| Mattioli et al. (2016) |
| Paolo Bosio find & collection |
| Buscaroli et al. (2007) +1 other reference |
| Fabris et al. (2014) | |
| Bortolozzi (n.d.) |
| Zorzi F. |
| Billows (1904) | |
| De Michele (1970) +3 other references |
| Federici (1948) +4 other references |
| "Minerali del Vicentino - La natrolite" ... |
| Boscardin et al. (2011) | |
Ivory Coast | |
| Pouclet A. et al. (2004) |
Japan | |
| - (n.d.) |
| - (n.d.) |
| Go Ito specimens |
| Matsubara (2003) |
| Kusaka (1982) |
| Matsubara (2003) |
| Petrov (n.d.) |
| PXRD + XRF by Alfredo Petrov | |
| Momma et al. (2015) |
| Mineralogical Journal Vol. 11 (1982) | |
| Petrov (n.d.) |
Kazakhstan | |
| Spiridonov (2014) |
Madagascar | |
| www.mindat.org (n.d.) |
| Le Régne Minéral # 112 |
| Behier (1960) |
| Behier (1963) | |
| Michel Arliguie collection & photo (Photo ID: 1009476, old sample, Ex Jean Behier collection) |
Mexico | |
| Moore (1998) |
| Panczner (1987) |
| - (SGM, 2019) |
| Loucks et al. (1988) +1 other reference |
| Minera Autlan |
| Prol-Ledesma et al. (2002) |
| Braith et al. (2001) |
| Brian Cowger |
Morocco | |
| Pršek et al. (2020) |
| SEM/EDXS analyses by P. Roth |
| Pršek et al. (2020) |
Namibia | |
| Cairncross et al. (2007) |
Nazca Plate | |
| Zawadzki et al. (2022) +1 other reference | |
New Zealand | |
| T. Saunderson collection +1 other reference |
| Collection of RJ Martin |
| Railton et al. (1990) |
| de Ronde +16 other references |
| Collection of RJ Martin (initial ID by S Courtney, Univ of Auck) |
| Tim Saunderson |
| Railton et al. (1990) |
| Railton et al. (1990) | |
| Hutton (1942) +1 other reference |
Nicaragua | |
| Rock Currier collection #8720 |
North Macedonia | |
| Percival et al. (1994) |
Norway | |
| Kvamsdal (1998) |
| Prestvik et al. (1999) |
| Engvoldsen et al. (1991) |
| Brøgger (1931) |
| Brøgger (1931) | |
| Furnes et al. (1982) |
Oman | |
| Haymon et al. (1989) |
Pacific Ocean | |
| Christine Laverne et al. (2006) |
Panama | |
| Byington |
Paraguay | |
| Petrov (n.d.) |
Peru | |
| Freeport-McMoRan |
Poland | |
| Cichoń (1977) |
| Eligiusz Szełęg private collection | |
| Eligiusz Szełęg collection |
| Marszałek M. & Czerny J. 2009: ... | |
| Lis et al. (1986) |
| Lis et al. (1986) |
| Lis et al. (1986) |
| Praszkier et al. (2011) |
| Powolny et al. (2021) +1 other reference |
| Kühn B. (1918) |
| Michalik (1991) |
| Lis et al. (1986) |
| Chodyniecka L. (1969) | |
Portugal | |
| Pedro Alves collection. Characterized ... |
| Alves (n.d.) |
| Leal et al. (2022) |
Romania | |
| Szakáll |
| Bielz (1889) |
| Bielz (1889) |
| von Hauer et al. (1863) |
| Doelter (1874) |
Russia | |
| Ripp et al. (2019) |
| Bosi et al. (2014) |
| Kozlov et al. (n.d.) |
| Palyanova +3 other references |
| Levitsky (webmineral.ru) |
| Pavel M. Kartashov (n.d.) |
| Pekov (2003) |
| ... | |
| Borozdin et al. (2014, January) |
| Попов et al. (2018) |
| Kasatkin et al. (2021) |
| Yurgenson et al. (2023) |
Slovakia | |
| Koděra et al. (1986) |
| Koděra et al. (1986) |
| Koděra et al. (1986) | |
| Koděra et al. (1986) | |
| Zipster (1817) |
| Koděra et al. (1986) | |
| Koděra et al. (1986) |
| Duda |
| Ďuďa |
| Duda et. all. |
| Duda et all. |
| Koděra et al. (1986) |
South America Plate | |
| Schrank et al. (2024) |
Spain | |
| Toscano et al. (1994) |
| e.j.timmerman |
| Bustillo (2003) |
| Juan Miguel Casanova |
Sweden | |
| |
UK | |
| Ford et al. (1993) |
| Ingram (1994) |
| McLintock (1915) |
| King (n.d.) |
| NNational Museum of Wales database |
Ukraine | |
| Pavel M. Kartashov data of 2015 |
| Tischenko A. data |
| Dvoichenko P.A. The minerals of Crimea (1914) |
| Tischenko Alexander |
| A. Tischenko. Minerals of the Crimea - ... |
| Dvoichenko (1914) +1 other reference |
| Liventseva (n.d.) |
Uruguay | |
| Morteani et al. (2010) |
| Arduin-Rode et al. (2024) | |
USA | |
| Econ Geol (1987) |
| Anthony et al. (1995) |
| Cooper (1964) +1 other reference |
| Lowell (1956) +1 other reference |
| Thomssen et al. (1983) |
| Bideaux et al. (1960) +2 other references | |
| Bideaux et al. (1960) +2 other references | |
| Bideaux et al. (1960) +2 other references | |
| Thomssen (1983) +1 other reference |
| Thomssen (1983) +1 other reference |
| Bideaux et al. (1960) +2 other references | |
| Howard +1 other reference |
| Howard +1 other reference | |
| Murdoch (1966) +2 other references |
| Bob Massey micromount collection |
| DeVito (1997) | |
| CDMG OFR 94-11 " Mineral Land ... |
| Irelan et al. (1890a) +1 other reference |
| Bettison et al. (1988) |
| DeVito (1992) |
| Hampson (2004) |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
| Rocks & Minerals 79:5 pp316-324 |
| Eckel et al. (1997) |
| Carnein et al. (2005) |
| John Pawloski collection |
| Harold Moritz Collection |
| Moritz (n.d.) |
| Miller (2024) | |
| King (n.d.) |
| G Romaine (A Falcon Guide) |
| Ream (2004) |
| Heinrich et al. (2004) |
| Yalmer Primeau |
| Heinrich et al. (2004) |
| Samuel Anderson Collection |
| - (1958) |
| MarekC pers.coll. July 2016 |
| Castor et al. (2004) | |
| Luetcke (n.d.) |
| Ken Coleman Collection |
| - (2005) |
| Castor et al. (2004) |
| Castor et al. (2004) | |
| Castor et al. (2004) |
| Ken Coleman Collection | |
| Castor et al. (2004) |
| Ken Coleman Collection |
| Ken Coleman Collection | |
| Castor et al. (2004) |
| Lemanski (n.d.) |
| Northrop et al. (1996) |
| DeMark (1989) |
| Northrop et al. (1996) | |
| Northrop et al. (1996) | |
| Northrop et al. (1996) | |
| Northrop et al. (1996) |
| Northrop et al. (1996) | |
| Northrop et al. (1996) |
| Chamberlain et al. (1999) |
| Gary Moldovany collection |
| Hershel Friedman collection (2007) | |
| GSA Southeatern Section-60th Annual Meeting (23-25 March 2011) |
| Susina (2010) | |
| Bill Thompkins |
| Gladwell ( ) +3 other references | |
| King (n.d.) |
| Zach Capel |
| Micro Probe Vol. 6 No. 3 Fall 1986 +2 other references |
| Steve Ewens Collection |
| Bargar et al. (1997) |
| Bargar et al. (1997) | |
| Bargar et al. (1997) | |
| - (n.d.) |
| Petersen et al. (2001) |
| DANA R. KELLEY AND PAUL F. KERR (1958) |
| Bullock (1981) |
| Bullock (1981) |
| Bullock (1981) |
| Dietrich (1985) |
| Micro Probe (1995) |
| Miklancic collection #2575/71 |
| Micro Probe Volume VIII Number 9 spring ... |
| Cannon (1975) |
| Aidan Cerenzie Collection | |
| Cannon (1975) |
| Cordua (1998) |
| Tschernich (1992) | |
Zimbabwe | |
| Wolfgang Hampel |
| Wolfgang Hampel |
| Moore (2013) |
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Terra do Baptista gabbro outcrop, Porto da Cruz, Machico, Madeira Island, Madeira, Portugal