Sphene is also known as Titanite. Its species is titanite and its color ranges from yellow to brown, green, or reddish. It has hardness of 5-5.5. Sphene is found in Austria, Brazil, Canada, Germany, Italy, Mexico, Myanmar, Pakistan, Russia, Sri Lanka, Switzerland, and the United States. <br /><br />Crystals of sphene are normally small, therefore gems are typically less than 2 carats in size. Sphene color can be changed to red or orange by heat enhancement.<br /><br />Sphene is famous for its unique fire which is more vibrant than diamonds and it is a perfect stone for jewelry making.