Walfordite is a very rare tellurite mineral that was discovered in Chile in 1999.

[5] The mineral is described as orange with orange-yellow streak, and is determined to have a chemical formula of Fe3+,Te6+Te4+3O8[2] with minor titanium and magnesium substitution resulting in an approximate empirical formula of (Fe3+,Te6+,Ti4+,Mg)(Te4+)3O8.

[5] The only reported occurrence[3] is in the Wendy open pit, El Indio-Tambo mining district of the Coquimbo Region, northern Chile where it occurs in oxidized breccia associated with a tellurium-bearing gold deposit.

Associated minerals include: alunite, rodalquilarite, native gold, emmonsite, jarosite and pyrite.

[2] This article about a specific mineral or mineraloid is a stub.