Black Rutile Ring - A Perfect Blend Of Beauty Black Rutile is also popular as black rutilated quartz, a type of quartz gemstone containing needle-like insertions of black or dark brown rutile. It is a unique gemstone famous for its fascinating appearance and metaphysical properties. Black Rutile is formed when rutile needles become trapped within quartz during the gemstone's formation process. These insertions create beautiful patterns that vary in intensity, density, and distribution. Black Rutile has a Mohs hardness rating of 7, making them comparatively durable and suitable for various types of Black Rutile Jewelry. It is believed that black rutile possesses many strong energies and provides several benefits to the wearer.