This UV Sodalite Tower is approximately 7.5" tall and 1.7" wide; weight is approximately 552 grams. This tower is 6 sided.
 
UV Sodalite or Fluorescent Sodalite was found around Lake Superior in 2017. Also, known are Syenite Sodalite. Can be found in China, Canada and USA. It has a Mohs of 6 and color is black/grey. Will react to UV 365nm light.