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euxenite, columbite, franklinite, goethite, hausmannite, hematite, ilmenite, ishikawaite, latrappite, magnetite, lueshite, manganite, manganotantalite, microlite, psilomelane, pyrolusite, rutile, samarskite, senarmontite, spinel, tantalite, thorianite, uraninite, yttrotantalite, zincite. to purchase mineral
var. ruby , winza, mpwapwa district, tanzania (t) $ # , hematite (sawn slab of specular hematite) , west of swansea, near planet peak, arizona (c) $ # , spinel , mahenge, tanzania (t) $ # , bixbyite , n'chwaning ii mine, south africa (m) $ # , goethite with smoky-amethyst quartz , mile hi rock and mineral...
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