A gray granite headstone columbarium is a type of memorial structure used to house urns containing cremated remains. The columbarium is typically made of durable, high-quality gray granite that is polished to a smooth finish. The headstone part of the columbarium serves as a place to memorialize loved ones and typically includes their name, birth and death dates, and other personalized inscriptions. The columbarium itself is made up of multiple niches, or small compartments, each designed to hold an urn containing the remains of a loved one. This type of memorial structure is often used in cemeteries or other sacred spaces to provide a lasting and dignified final resting place for those who have been cremated.