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Odinite

A valid IMA mineral species
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Formula:
(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4
Colour:
Silky green to dark green
Lustre:
Silky, Earthy
Hardness:
2½
Crystal System:
Monoclinic
Name:
For French clay mineralogist Gilles Serge Odin (May 31, 1942 in Arcis sur Aube, France - ?), University P. and M. Curie, Paris, France. He did the initial work on this mineral.
Kaolinite-Serpentine Group.

Note: odinite can also refer to a basaltic dyke rock with primarily anorthite (labradorite) and some augite in a groundmass of fine grained hornblende and minor quartz.


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Unique IdentifiersHide

Mindat ID:
2957
Long-form identifier:
mindat:1:1:2957:1

Similar NamesHide

AdaniteA valid IMA mineral speciesPb2(Te4+O3)(SO4)
DiniteA valid IMA mineral species - grandfatheredC20H36
EdeniteA valid IMA mineral species - grandfatheredNaCa2Mg5(Si7Al)O22(OH)2
EdiniteA synonym of 'Prase'
OdeniteA synonym of Biotite
ÓtainítA synonym of Autunite

IMA Classification of OdiniteHide

IMA status:
Approved
IMA Formula:
(Fe3+,Mg,Al,Fe2+)2.5(Si,Al)2O5(OH)4
Approval year:
1988

Classification of OdiniteHide

Strunz-mindat (2026):
9.ED.05

9 : SILICATES (Germanates)
E : Phyllosilicates
D : Phyllosilicates with kaolinite layers composed of tetrahedral and octahedral nets
Dana 8th ed.:
71.1.1.5

71 : PHYLLOSILICATES Sheets of Six-Membered Rings
1 : Sheets of 6-membered rings with 1:1 layers
Hey's CIM Ref.:
16.19.16

16 : Silicates Containing Aluminum and other Metals
19 : Aluminosilicates of Fe and Mg

Mineral SymbolsHide

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.

SymbolSourceReference for Standard
OdnIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
OdnWarr (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 OdiniteHide

Lustre:
Silky, Earthy
Transparency:
Opaque
Colour:
Silky green to dark green
Streak:
Gray green
Hardness:
2½ on Mohs scale

Optical Data of OdiniteHide

Type:
Biaxial
Dispersion:
r > v strong

Chemistry of OdiniteHide

Mindat Formula:
(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4
Element Weights:
Element% weight
O42.574 %
Fe39.627 %
Si16.608 %
H1.192 %

Calculated from ideal end-member formula.
Elements listed:
Al, Fe, H, Mg, Mn, O, Si, Ti - search for minerals with similar chemistry

Crystallography of OdiniteHide

Crystal System:
Monoclinic
Class (H-M):
m - Domatic
Space Group:
Bm
Setting:
Cm
Comment:
1M (Cm) and 1A (P31m) polytypes.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.15 Å(100)
4.65 Å(40)
4.53 Å(20)
3.58 Å(85)
2.67 Å(40)
2.41 Å(30)
1.552 Å(65)
Comments:
Mixed monoclinic and hexagonal polytypes.

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of OdiniteHide

Type Locality:
ⓘ Los Archipelago (Los Islands), Conakry Region, Guinea
Geological Setting of Type Material:
Recent sediments on continental margins.

Synonyms of OdiniteHide

Other Language Names for OdiniteHide

Dutch:Odiniet
German:Odinit
Spanish:Odinita

Relationship of Odinite to other SpeciesHide

Member of:
Kaolinite-Serpentine Group
Other Members of Kaolinite-Serpentine Group:
Greenalite(Fe2+,Fe3+)2-3Si2O5(OH)4Mon.
Kaolinite SubgroupAl2Si2O5(OH)4
ManandoniteLi2Al4(Si2AlB)O10(OH)8Orth. 222 : C2221
Serpentine SubgroupD3[Si2O5](OH)4

Related Minerals - Strunz-mindat GroupingHide

9.ED.'Clinochrysotile'Mg3(Si2O5)(OH)4Mon. 2/m
9.ED.05DickiteAl2(Si2O5)(OH)4Mon. m : Bb
9.ED.05NacriteAl2(Si2O5)(OH)4Mon. m : Bb
9.ED.05KaoliniteAl2(Si2O5)(OH)4Tric. 1 : P1
9.ED.10HalloysiteAl2Si2O5(OH)4 · n(H2O)Mon. m : Bb
9.ED.10HisingeriteFe3+2(Si2O5)(OH)4 · 2H2OMon.
9.ED.10'Hydrohalloysite'Al2Si2O5(OH)4 · 2H2OMon. m
9.ED.15AntigoriteMg3(Si2O5)(OH)4Mon. m : Bm
9.ED.15Brindleyite(Ni,Al)3(Si,Al)2O5(OH)4Mon.
9.ED.15Fraipontite(Zn,Al)3((Si,Al)2O5)(OH)4Mon.
9.ED.15NépouiteNi3Si2O5(OH)4Orth.
9.ED.15PecoraiteNi3(Si2O5)(OH)4Mon.
9.ED.15GuidottiiteMn2Fe3+(Fe3+SiO5)(OH)4Hex. 6 : P63
9.ED.15LizarditeMg3(Si2O5)(OH)4Trig. 3m : P31m
9.ED.15Berthierine(Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4Mon. m : Bm
9.ED.15KellyiteMn2+2Al(AlSiO5)(OH)4Hex. 6 : P63
9.ED.15CronstedtiteFe2+2Fe3+((Si,Fe3+)2O5)(OH)4Trig. 3m : P31m
9.ED.15CaryopiliteMn2+3Si2O5(OH)4Mon.
9.ED.15AmesiteMg2Al(AlSiO5)(OH)4Tric. 1 : P1
9.ED.15Greenalite(Fe2+,Fe3+)2-3Si2O5(OH)4Mon.
9.ED.15ManandoniteLi2Al4(Si2AlB)O10(OH)8Orth. 222 : C2221
9.ED.20ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1Orth.
9.ED.20Neotocite(Mn,Fe)SiO3 · H2O (?)Amor.
9.ED.20Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2OAmor.
9.ED.20ImogoliteAl2SiO3(OH)4
9.ED.25BismutoferriteFe3+2Bi(SiO4)2(OH)Mon. m : Bm
9.ED.25ChapmaniteFe3+2Sb3+(Si2O5)O3(OH)Mon. m : Bm
9.ED.30'Pianlinite'Al2Si2O6(OH)2Orth.

Other InformationHide

Thermal Behaviour:
DTA endothermic reactions at 125, 410, 550, 710
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 OdiniteHide

References for OdiniteHide

Localities for OdiniteHide

Showing 5 localities.

This 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.
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Locality ListHide

- 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Czech Republic
 
  • Moravian-Silesian Region
    • Bruntál District
      • Horní Benešov
Fojt B. (2013) +1 other reference
France
 
  • New Caledonia
    • Southern Province
Bailey (1988)
Guinea (TL)
 
  • Conakry Region
Bailey (1988)
Russia
 
  • Buryatia
    • Zakamensky District
      • Dzhida W-Mo District
Damdinov et al. (2022)
USA
 
  • Texas
    • Burleson County
Flis et al. (2015)
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