Visualizing radiation via a cloud chamber- Very saturated alcohol vapor allows you to see trails made by energetic particles as they are emitted from a piece of Thorianite. Chamber and vid by @a_glacial_erratic
Here is a pic of the Rhombus ring in Indigo. It is a deep deep blue with a purple shift, and sometimes it reflects a bright cyan like you see here! Check out my ready to ship section on my website for this and more!