How they are made:
A mood ring stone is either a glass shell containing thermotropic liquid crystals or a hollow quartz. Today mood rings are mostly made with one flat strip of liquid crystals. The liquid crystals then have a protective coating on top.
Fun Facts about mood rings:When you buy mood rings you get a slip of paper explaining what each color stands for and means
First introduced in 1975 Earliest rings were set in precious metals such as silver and gold Were worth hundreds of dollars physician used thermotropic tape on a child to take her temperature and Marvin Wernick tryed it in a ring Marvin was not patent so Joshua Reynolds was the first to popularize the rings Joshua sold 1 million dollors worth of mood rings in 3 months Quartz is found widely in igneous, metamorphic, and sedimentary rocks Quartz is the most common mineral in the Earth's crust |