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• Iridium is a stable metal that rarely reacts chemically.

• Iridium is the most corrosive resistant of all metals.

• It is mainly used is as a hardening agent in Platinum alloys.

• Used in treating prostate and other cancers by high dose radiation therapy.

• Used in the manufacture of crucibles , special containers and other apparatus resistant to intense heat.

• Alloyed with Platinum to make heavy duty electrical contacts such as high performance technically advanced spark plugs for use in the automotive and aviation industries.

• Very brittle and extremely difficult to machine but is available as sheet, wire, powder and sponge.

• As a catalyst to produce acetic acid

• Iridium alloyed with Osmium is used to tip fountain pen nibs and in pivot bearings such as those found in compasses, surgical tools and other special equipment.