Rutile is a Titanium Oxide mineral and these crystals are growing from a center cluster of shiny tabular metallic Hematite to create a beautiful sunburst of Golden Rutile. Twinning is common in Rutile crystals, with a cyclic twin forming that is comprised of six to eight “twins” arranged in a circular pattern. A Rutile Star is a formation of crystals of Rutile in a six-rayed orientation. The crystals grow off a Hematite crystal and the orientation is caused by its six rhombic faces.