WILLEMITE FOR SALE

Willemite is a zinc silicate mineral that's a minor ore of zinc and is known for its fluorescence under ultraviolet light. In daylight, it can appear in many colors, including red, brown, tan, pink, black, white, gray, blue, yellow, orange, or shades of green. Under ultraviolet light, it displays a bright green fluorescence due to manganese 2+ activators in its chemical structure.