The most captivating feature of this rose quartz sphere emerges under direct illumination—a star-like pattern known as asterism. This effect is the result of light reflecting off rutile or other needle-like mineral inclusions within the quartz. These inclusions are aligned in such a way that when light is directed at the sphere, it reflects and refracts to form a star-shaped pattern on the surface. Typically, this star has four or six rays, depending on the internal structure of the inclusions.
Such spheres are not only aesthetically pleasing but also serve as fascinating examples of the interplay between light and mineral inclusions in gemstones. Beyond their decorative appeal, rose quartz spheres with asterism are sought after by collectors and enthusiasts for their rarity and the unique optical phenomenon they display.