Different gemstones have different properties. I found that wearing a quartz crystal necklace helped me breathe more deeply and seemed to help me ward off cold virus infections. Breathing profoundly helps reduce stress.
I bought the necklace because I like crystals. They are pretty. However, after wearing the necklace for 10–15 minutes, I noticed I was breathing better. I was surprised. I was living much better, and it felt good. I later looked up quartz crystals on the internet. I found out that Native Americans have been using quartz crystals for a very long time for respiratory illnesses. That explained it to me.