Fluorite and celestite are two noteworthy minerals found in Clay Center, Ohio.

Fluorite is recognized for its vibrant colors and cubic crystal forms, ranging from deep greens and purples to clear varieties. This mineral is known for its fluorescence under ultraviolet light, which adds to its allure among collectors and enthusiasts. In Clay Center, fluorite typically forms in sedimentary environments, often associated with lead and zinc ore deposits.

Celestite, on the other hand, is prized for its delicate blue color and is primarily composed of strontium sulfate. In the Clay Center area, celestite can be found in geodes and as crystalline clusters. Its attractive hue and transparency make it a popular choice for decorative purposes and metaphysical practices.

Both minerals contribute to the rich geological history of Ohio and offer insight into the area's mineral diversity. Collecting specimens of fluorite and celestite from this region can enhance any mineral collection, showcasing the beauty and variety of Earth's natural treasures.