The mineral group tantalite [(Fe,
Mn)Ta2Ta2O6] is the primary source
of the chemical element tantalum. It is chemically similar to
columbite, and the two are often grouped together as a
semi-singular mineral called coltan or "columbite-tantalite" in
many mineral guides. However, tantalite has a much greater specific
gravity than columbite (8.0+ compared to columbite's 5.2).
Iron-rich tantalite is the mineral tantalite-(Fe) or ferrotantalite
and manganese-rich is tantalite-(Mn) or manganotantalite. Tantalite
is also very close to tapiolite. Those minerals have same chemical
composition, but different crystal symmetry orthorhombic for
tantalite and tetragonal for tapiolite. Tantalite is black to brown
in both color and streak. Manganese-rich tantalites can be brown
and translucent.
Chifam Investments is noted for supplying high
quality gems stones of various types and quantity, since ***9.
We have in large quantity some high quality Tantalite ore /
Columbite ore, for sell to any serious and potential buyer on
competitive rate and favourable payment instrument, if interested
please contact us for our firm and rock bottom offer.
