Yooperlite

Yooperlite , also known as Yooperlite, is a type of fluorescent sodalite found in the Upper Peninsula of Michigan, USA. The name "Yooperlite" is related to the location in the Upper Peninsula of Michigan where it is found. "Yooper" is a colloquial name for people from the Upper Peninsula of Michigan. The first deposits were only discovered in 2017 and are often referred to as "Glowing rocks" due to their behavior under UV light

The stones are composed primarily of syenite rock, which is similar to granite, but they contain a high concentration of fluorescent sodalite. This mineral gives the stones their characteristic glow when exposed to ultraviolet light.

Formed by volcanic activity about 1 billion years ago when the North American continent broke apart, Yooperlites are found only in one specific location in Michigan and do not appear to appear anywhere else.

The color of Yooperlite is light gray to grey, interspersed with darker, blue flecks due to the presence of fluorescent sodalite. Under UV light, Yooperlites glow a light green color, making them a perfect night light or accent lighting.