Gracious gold (titanium rutile) Rutilated Quartz pendant with free 925 Sterling Silver snake chain! Rutilated quartz, is a type of quartz with needlelike rutile embedded in it. Rutile is well known for its habit of forming needle-like inclusions within other minerals, especially Quartz, in the form of long and slender yellow straw-like crystals. These inclusions can range from scattered needles to dense parallel fibers within a host mineral. Ruitle Composition: titanium dioxide, often with iron, occasionally with some minor niobium or tantalum.