Type
Element (Minerals/Ores of)
Mineral Classification
Oxide
Chemical Formula
(Fe,Mn)(Ta,Nb)2O6
Streak
Brownish-red, to Black
Mohs Hardness
6
Tantalum
Release time：23 August 2019
Crystal System
Orthorhombic
Color
Black or Brown
Luster
submetallic
Fracture
Subconchoidal
Description
Tantalum (Ta) has a very high melting point (2996°C), exceeded only by that of carbon, tungsten, and rhenium, and is remarkably resistant to attack by air, water and most acids. Tantalum is a hard, grayish-blue, metallic element.
Relation to Mining
Tantalum is recovered from ore minerals such as columbite and tantalite that are mined in open pits and underground.
Uses
A refractory metal with unique electrical, chemical, and physical properties that is used mostly as tantalum metal powder in the production of electronic components, mainly tantalum capacitors. Because it has such a very high melting point, it is alloyed with other metals to create alloys that are needed for very high temperature applications, such as metal working equipment and jet engine components.
Since tantalum is so resistant to corrosion, it is used to make surgical instruments and medical equipment such as rods to attach to broken bones, skull plates, and wire meshes to help repair nerves and muscles.
Tantalum is also used in camera lenses.
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