Tantalite

Tantalite specimens for sale

45 for sale ยท $60โ€“$5,000 USD

37 in the gallery

Tantalite is the mineral group of iron and tantalum oxides (Ta-Nb oxide series) with the common compositions ferro-tantalite and manganotantalite. Crystals typically form dense, dark to brownish-black aggregates with a submetallic to resinous lustre and a relatively high hardness for an oxide mineral. Collectors prize its strong, lustrous prismatic crystals and the steady demand for specimens that reveal the tantalum-rich chemistry behind many modern electronics.

Formula
Fe2+Ta2O6
Rarity
Rare
Stability
Stable
Collector interest
Very High Interest
Classification notes
Oxide mineral; Ta-Nb oxide group (tantalites)

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Where Tantalite is found

About Tantalite

Notable localities include several classic sources where tantalite-bearing pegmatites and greenschist to metamorphic environments yield well-formed crystals. Brazil, Afghanistan, Mozambique, the USA, and Pakistan appear prominently on specimen lists, reflecting diverse geological settings and crystal habits. Specimens often display sharp edges, complex twinning, and a range of colors from deep black to dark brown, sometimes with contrasting host minerals that enhance display appeal. For collectors, tantalite offers both scientific interest in Ta-rich mineralogy and the challenge of identifying high-quality, well-documented pieces from reputable localities.