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Walfordite

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Formula:
(Fe3+,Te6+)Te34+O8
System:
Isometric
Colour:
Orange
Lustre:
Adamantine
Name:
Named after Phillip Walford (b. 1945), of Toronto, Ontario, Canada, Vice-President and Chief Geologist of LAC Minerals, Ltd., at the time that mining company held the mining rights to the discovery locality.
This page provides mineralogical data about Walfordite.

Classification of Walfordite

Approved
4.JK.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
K : Tellurites without additional anions, without H2O
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First Recorded Occurrence of Walfordite

Physical Properties of Walfordite

Adamantine
Diaphaneity (Transparency):
Opaque
Colour:
Orange
Streak:
Orange-yellow
Tenacity:
Brittle

Crystallography of Walfordite

Crystal System:
Isometric

Optical Data of Walfordite

Type:
Isotropic

Chemical Properties of Walfordite

Formula:
(Fe3+,Te6+)Te34+O8
Essential elements:
All elements listed in formula:

Relationship of Walfordite to other Species

4.JK.05WinstanleyiteTiTe34+O8
4.JK.10Spiroffite(Mn,Zn)2Te34+O8
4.JK.10ZincospiroffiteZn2Te34+O8
4.JK.15BalyakiniteCu(TeO3)
4.JK.20RajiteCu(Te24+O5)
4.JK.25CarlfriesiteCaTe24+Te6+O8
4.JK.30Denningite(Mn2+,Ca,Zn)Te24+O5
4.JK.35ChekhovichiteBi2Te44+O11
4.JK.40SmirniteBi2Te4+O5
4.JK.45Choloalite(Cu,Sb)3(Pb,Ca)3(TeO3)6Cl
4.JK.50FairbankitePb(TeO3)
4.JK.55PlumbotelluritePb(TeO3)
4.JK.60Magnolite(Hg2+)(Te4+O3)
4.JK.65MoctezumitePb(UO2)(TeO3)2
4.JK.70Schmitterite(UO2)(TeO3)
4.JK.75Cliffordite(UO2)Te34+O7

Other Names for Walfordite

Name in Other Languages:

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.

References for Walfordite

Reference List:
BACK, M.E., GRICE, J.D., GAULT, R.A., CRIDDLE, A.J. & MANDARINO, J.A. (1999): Walfordite, a new tellurite from the Wendy open pit, El Indio - Tambo mining property, Chile. Canadian Mineralogist 38, 1261-1268.
Canadian Mineralogist (1999): 37: 1261-1268.
Acta Crystallographica: B27: 602-607.

Internet Links for Walfordite

Localities for Walfordite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Chile
 
  • Coquimbo Region
    • Elqui Province
      • El Indio deposit
        • Tambo Mine
Back, M.E., Grice, J.D., Gault, R.A., Criddle, A.J. & Mandarino, J.A. (1999): Walfordite, a new tellurite from the Wendy open pit, El Indio - Tambo mining property, Chile. Canadian Mineralogist 37, 1261-1268.
Mineral and/or Locality  
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