ferrocolumbite
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Ferrocolumbite — Ferrocolumbite, also called niobite, niobite tantalite, columbate and columbite [(Fe, Mn)(Nb, Ta)2O6] is a black mineral that is an ore of niobium and tantalum. It has a submetallic luster and a high specific gravity and is a niobate of iron and… … Wikipedia
Ferrocolumbite — Catégorie IV : oxydes et hydroxydes[1] Général … Wikipédia en Français
List of minerals F-J (complete) — It is currently not possible to have a complete list of minerals . The International Mineralogical Association is the international group that recognises new minerals and new mineral names, however minerals discovered before 1959 did not go… … Wikipedia
Columbite — (Fe) General Category Oxide minerals Chemical formula Fe2+Nb2O … Wikipedia
List of minerals — This is a List of minerals for which there are Wikipedia articles. Mineral variety names and mineraloids are to be listed after the valid minerals for each letter.For a complete listing (about 4,000) of all mineral names: List of minerals… … Wikipedia
Axinite — – Deposit Topotype, France General Category Borosilicates Chemical formula … Wikipedia
Manganese nodule — Polymetallic nodules, also called manganese nodules, are rock concretions on the sea bottom formed of concentric layers of iron and manganese hydroxides around a core. The core may be microscopically small and is sometimes completely transformed… … Wikipedia
Rhodochrosite — from Sweet Home Mine, Alma, Colorado, USA General Category Mineral species … Wikipedia
Ferrotantalite — Ferrotantalite, (Fe, Mn)(Ta, Nb)2O6 is a black mineral that is an ore of niobium and tantalum. It has a submetallic luster, a high specific gravity and is a tantalate of iron and manganese, containing niobate of iron. This mineral was first found … Wikipedia
Manganite — This article is about the mineral of formula MnO(OH), for other uses of the term manganite see Manganite (disambiguation) Manganite Manganite, Ilfeld, Thuringia, Germany (size: 5.2×4.1×2.7 cm) Gener … Wikipedia
