Sphene comes from the Greek word “sphenos,” meaning wedge, It has more “fire” than a diamond. Sphene is the gemstone variety of the mineral titanite. It ranges in color from a yellowish green to orange-brown. Intense green sphene is also known as “Chrome Sphene”, due to the color agent being chromium. “Chrome Sphene” and yellowish-green sphene are the most desirable colors.