One intriguing fact about Black Star Sapphire is its captivating asterism, which gives it the appearance of a shimmering star when viewed under a single light source. This optical phenomenon is caused by the presence of needle-like inclusions of hematite or other minerals within the sapphire crystal structure. When light interacts with these inclusions, it creates a stunning six-ray star pattern known as asterism, which seems to float magically across the surface of the stone as it's moved. This unique and mesmerizing effect adds to the allure of Black Star Sapphire, making it a prized gemstone for jewelry and collectors alike.
