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Woodallite

A valid IMA mineral species
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Named in honor of Dr. Roy Woodall AO, FAA, FTSE, (3 November 1930, Subiaco Perth, Western Australia, Australia - died 14 February 2021). Roy was an eminent Australian geologist who was instrumental in the initiation and development of the nickel and aluminium industries in Western Australia.
Type Locality:
ⓘMount Keith Open Pit, Mount Keith, Wiluna Shire, Western Australia, Australia
Hydrotalcite Group.

May grade intochromium-bearing iowaite.
See also the visually similarstichtite.


Unique Identifiers
Approval year:
2000
Type description reference:
Grguric, B.A., Madsen, I.C., Pring, A. (2001) Woodallite, a new chromium analogue of iowaite from the Mount Keith nickel deposit, Western Australia.Mineralogical Magazine, 65 (3). 427-435doi:10.1180/002646101300119501

Classification of Woodallite

Mineral Symbols
Transparency:
Transparent
Colour:
Purple to deep magenta.
Streak:
Pale pink to white
Hardness:
1½ - 2 onMohs scale
Tenacity:
Flexible
Cleavage:
Perfect
Perfect {0001}
Density:
2.062(5) g/cm3 (Measured)    2.023 g/cm3 (Calculated)

Optical Data of Woodallite
Surface Relief:
Low
Pleochroism:
Visible
Comments:
violet to pinkish lilac.

Chemistry of Woodallite

Crystallography of Woodallite
General Appearance of Type Material:
As platelets, commonly curved or crenulated, to
100 μm
Place of Conservation of Type Material:
: South Australian Museum, Adelaide (G25116), the Western Australian Museum, Perth (WAM M1.2000), and the Museum of Victoria, Melbourne (M46222), Australia.
Associated Minerals at Type Locality:
BruciteChromiteIowaiteLizarditeMagnetite
PentlanditeTochilinite
Reference:
Grguric, B.A., Madsen, I.C., Pring, A. (2001) Woodallite, a new chromium analogue of iowaite from the Mount Keith nickel deposit, Western Australia.Mineralogical Magazine, 65 (3). 427-435doi:10.1180/002646101300119501

Synonyms of Woodallite

Other Language Names for Woodallite

Relationship of Woodallite to other Species
Other Members of Hydrotalcite Group:
DesautelsiteMg6Mn3+2(OH)16[CO3] · 4H2OTrig.3m(32/m)
DroninoiteNi6Fe3+2(OH)16Cl2 · 4H2OTrig.3m(32/m) :R3m
HydrotalciteMg6Al2(CO3)(OH)16 · 4H2OTrig.3m(32/m) :R3m
Hydrotalcite-3RMg6Al2(CO3)(OH)16 · 4H2OTrig.3m(32/m) :R3m
IowaiteMg6Fe3+2(OH)16Cl2 · 4H2OTrig.3m(32/m) :R3m
KaznakhtiteNi6Co3+2(CO3)(OH)16 · 4H2OTrig.3 :R3
MeixneriteMg6Al2(OH)16(OH)2 · 4H2OTrig.3m(32/m) :R3m
PyroauriteMg6Fe3+2(OH)16[CO3] · 4H2OTrig.3m(32/m) :R3m
ReevesiteNi6Fe3+2(OH)16(CO3) · 4H2OTrig.3m(32/m) :R3m
StichtiteMg6Cr3+2(OH)16[CO3] · 4H2OTrig.3m(32/m) :R3m
TakoviteNi6Al2(OH)16[CO3] · 4H2OTrig.3m(32/m) :R3m
UM2002-02-COH:FeNi(Fe2+,Ni)6Fe3+2(CO3)(OH)16 · 4H2O

Common AssociatesTrig.3m(32/m) :R3m4.FL.Mariakrite[Ca4Al2(OH)12(H2O)4][Fe2S4]Tric.1 :P14.FL.05MuskoxiteMg7Fe4O13 · 10H2OTrig.3m(32/m)4.FL.05JamboriteNi2+1-xCo3+x(OH)2-x(SO4)x · nH2OTrig.3m(32/m) :R3m4.FL.05MössbaueriteFe3+6O4(OH)8[CO3] · 3H2OTrig.34.FL.05MeixneriteMg6Al2(OH)16(OH)2 · 4H2OTrig.3m(32/m) :R3m4.FL.05FougèriteFe2+4Fe3+2(OH)12[CO3] · 3H2OTrig.3m(32/m) :R3m4.FL.05DritsiteLi2Al4(OH)12Cl2 · 3H2OHex. 6/mmm(6/m2/m2/m) :P63/mcm4.FL.05RotemiteCa4Cr2(OH)12Cl2 · 4H2OTrig.3m(32/m) :R3c4.FL.05IowaiteMg6Fe3+2(OH)16Cl2 · 4H2OTrig.3m(32/m) :R3m4.FL.10HydrocalumiteCa4Al2(OH)12(Cl,CO3,OH)2 · 4H2OMon. 2 :P214.FL.15KuzeliteCa4Al2(OH)12[SO4] · 6H2OTrig.4.FL.20Jianshuiite(Mg,Mn,Ca)Mn3O7 · 3H2OTrig.3 :R34.FL.20ErnienickeliteNiMn3O7 · 3H2OTrig. 3 :R34.FL.20AuroriteMn2+Mn4+3O7 · 3H2OTrig. 3 :R34.FL.20ChalcophaniteZnMn4+3O7 · 3H2OTrig.3 :R34.FL.25WoodruffiteZn2+x/2(Mn4+1-xMn3+x)O2 · yH2OMon. 2/m :B2/m4.FL.30Asbolane(Ni,Co)2-xMn4+(O,OH)4 · nH2OHex.4.FL.30 vaLampaditeCu, Mn, O, H4.FL.35BuseriteNa4Mn14O27 · 21H2O4.FL.40Takanelite(Mn,Ca)Mn4O9 · H2OHex.4.FL.40Ranciéite(Ca,Mn2+)0.2(Mn4+,Mn3+)O2 · 0.6H2OTrig.3 :P34.FL.45Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2OMon. 2/m :B2/m4.FL.55CianciulliiteMn(Mg,Mn)2Zn2(OH)10 · 2-4H2OMon. 2/m :B2/m4.FL.60JenseniteCu3[TeO6] · 2H2OMon. 2/m :P21/m4.FL.65LeisingiteCu2MgTe6+O6 · 6H2OTrig. 3 :P34.FL.70AkdalaiteAl10O14(OH)2Hex.4.FL.75CafetiteCaTi2O5 · H2OMon. 2/m :P21/b4.FL.80MouriteUMo5O12(OH)10Mon.4.FL.85DeloryiteCu4(UO2)(MoO4)2(OH)6Mon. 2/m :B2/m4.FL.90LagalyiteCa2xMn1-xO2 · 1.5-2H2OMon.4.FL.95Tunnerite (of Cornu)4.FL.100CarbocalumiteCa4Al2(OH)12(CO3) · 6H2OTrig.3m(32/m) :R3c4.FL.100MampsisiteCa4Al2(CO3)(OH)12 · 5H2OTric.

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    • References for WoodalliteⓘWest Jordan depositGrguric et al. (2013)Wilson et al. (2014)Grguric et al. (2001)+2 other references
    Russia
     
    Zhitova et al. (2020)
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