tantalite

Tantalite is black to brown in both color and streak.

In 2006, 75% of world tantalite production came from Australia.

Several steps are involved in the extraction of tantalum from tantalite.

It is found in the mineral tantalite.

Tantalite is usually 30% tantalum (although this can vary dramatically).

Tantalite is also very close to tapiolite.

Brazil has the world's largest reserve of tantalite (52.1%).

Tantalum is found in the minerals tantalite and pyrochlore.

Columbite and tantalite are collectively known as coltan in Africa.

You're getting confused (over and above that report which is itself wrong) between tantalite, the ore, and tantalum, the metal.

The high density of tantalite and other tantalum containing minerals makes the use of gravitational separation the best method.

During the analysis of the mineral tantalite he concluded that it does contain an element similar to niobium and tantalum.

A health problem brought about by resource extraction is the effect of tantalite (coltan) mining on women and children who work in the mines.

Tapiolite is very close to columbite and tantalite.

Columbite has the same composition and crystal symmetry (orthorombic) as tantalite.

The mining of tantalite causes many ecological and social problems in Democratic Republic of Congo.

In 1845 Rose published the discovery of a new element pelopium, which he had found in the mineral tantalite.

Mixtures of columbite and tantalite are called coltan.

National production of tantalite was estimated to be 240,000 kilograms (kg) in 2006 compared with 281,212 kg in 2005.

However, tantalite has a much greater specific gravity than columbite, more than 8.0 compared to columbite's 5.2.

Cassiterite, columbite, and tantalite are some of the mineral resources found in Egbe.

The country also is a source of gold, silver, tin, vanadium, semiprecious gemstones, tantalite, phosphate, sulfur, and salt.

Columbite and Tantalite are ores used to produce the elements niobium and tantalum.

Of these, Moroto has gold, silver, copper, iron, titanium, manganese, niobium, tantalite and chrome.

There is some mineral availability in the area, such as tantalite, columbite, cassiterite, kaolin, and granite.