Name/Title
Sphere: QuartzDescription
Quartz is crystalline silicon dioxide (SiO₂), one of the most abundant minerals in Earth’s continental crust. It crystallizes in the trigonal system, has a vitreous luster and conchoidal fracture, and defines hardness 7 on the Mohs scale. Colorless transparent quartz is commonly known as rock crystal. This specimen contains visible internal fractures and inclusions and has been cut and polished into a sphere.Create Date
May 3, 2026Update Date
September 18, 2026