Titanium

About Titanium:

• It is the fourth most abundant element in the Earth's crust.

• It often occurs in ore deposits in the form of chemical compounds with iron or oxygen.

• It is present in meteorites and the sun.
• Ores of Titanium: The two prime commercial minerals are Ilmenite (FeTiO3) and Rutile (TiO2).
• Properties

• It is very corrosion-resistant and generally not affected by air, water, acids or bases. 
• It has a low density, good strength, is easily fabricated, and has excellent corrosion resistance. 
• The metal burns in the air and is the only element that burns in nitrogen. 

• Applications: 

• It is useful in aircraft, spacecraft, ships, and other high-stress applications. 
• It also is used in prosthetic devices, because it does not react with fleshy tissue and bone.
• Titanium oxide spectra are used by astronomers to identify cool red dwarf stars.