একটি কালো খনিজ যে, niobium এবং ধাতব পদার্থ একজন আকরিক হয়

columbite's Usage Examples:

chemically similar to columbite, and the two are often grouped together as a semi-singular mineral called coltan or "columbite-tantalite" in many mineral.

mineral Columbite, also called niobite, niobite-tantalite and columbate Tantalite, a mineral group close to columbite Coltan, a mixture of columbite and tantalite.

Coltan (short for columbite–tantalites and known industrially as tantalite) is a dull black metallic ore from which the elements niobium and tantalum.

By the 1940s, Nigeria was a major producer of tin, columbite, and coal.

to columbite and tantalite.

Those minerals have the same chemical composition, but different crystal symmetry orthorhombic for tantalite or columbite and.

, Hamza, and Habonimana but the production of columbite-tantalite ore decreased considerably to 23,356 kg in 2004 from 72,441 kg.

niobium, occurs in the mineral groups tantalite, columbite and coltan (the latter is a mix of columbite and tantalite, though not recognised as a separate.

minerals include quartz, feldspar, spodumene, amblygonite, tourmaline, columbite, cassiterite, topaz and beryl.

Cassiterite and columbite-tantalite deposits also occur as residual or eluvial concentrations.

It occurs in association with columbite, zircon, monazite, uraninite, aeschynite, magnetite, albite, topaz, beryl.

Niobium is often found in the minerals pyrochlore and columbite, hence the former name "columbium".

This confirmed that Charles Hatchett had discovered niobium in 1801 in columbite ore.

Maine where it is associated with feldspar, smoky quartz, beryl and columbite.

Hermann and Kobell analysed the minerals tantalite and columbite to better understand the chemistry of niobium and tantalum.

sedimentary basins, as well as reserves of gold, lead, zinc, tantalite, columbite, coal and tin.

Associated mineral species include elbaite, lepidolite, spodumene, columbite-tantalite, wodginite, and microlite.

In 1801, Hatchett analyzed a piece of columbite from the collection at the British Museum.

columbite's Meaning':

a black mineral that is an ore of niobium and tantalum

Synonyms:

niobium; atomic number 73; Ta; atomic number 41; niobite; mineral; Nb; tantalum;

Antonyms:

organic;