Niobium metal ingot - one troy ounce - .9995 bullion
Niobium (aka Columbium) has a very high melting point yet low density and is corrosion resistant. It is has the largest magnetic penetration depth of any element, has superconductive properties, and a low capture cross section for thermal neutrons. These unique physical properties make it useful in superalloys used in the steel, aerospace, shipbuilding, nuclear, electronics, and medical industries. Approximately 90% of world niobium production comes from Brazil which means it could be subject to supply disruptions. Please see the below links for more information. Inscribed on our ingots are the chemical symbol (Nb), purity (99.95%), weight (one troy ounce), and a serial number (this number is unique and will vary). On the reverse is our logo. These ingots are lightly polished, and look better than our first batch of niobium ingots. Most of them do have light cutter grooves on the ends similar to the one pictured, which we couldn't polish out completely without potentially dropping these below one troy ounce. As we suggest with all of our metals please store them in a safe place, do not ingest, and keep them out of the reach of children.
Each ingot will be shipped with an assay certificate and with our velvet logo bag for storage. If you are not completely satisfied with any purchase from us, you have 30 days to return it for a full refund (buyer to pay return shipping). Domestic shipping is free for all orders over $199 (enter code free shipping at checkout). For orders of $199 or under, domestic shipping is $9.95. International shipping is now via USPS international priority express and costs $45 for shipments up to a pound (9 one ounce ingots or less including packaging materials) and $10 for each additional pound.