Fluorite is a brain balancer helping the right and left brain work together. It helps to reduce anxiety and worry for the future by quieting conflicting thoughts, confusion and brain fog, essentially helping us to see things clearly. I like it think of Fluorite as The Students Stone because it's excellent for memorization and retaining information. These Palm Stones are 3 to 4 ounces each. This is for 1 Palm Stone and I will intuitively pick for you.