Fluorite is believed to have a calming energy, bringing order to a chaotic mind and facilitating clear verbalisation of ideas once muddled. Fluorite is known to cleanse, stabilise and protect the aura as well as improving physical and mental coordination.
USB is yellow/warm light.
6cm diameter. 672 grams.
Disclosure: If you are worried about your health always see your doctor first. There are no guarantees with crystals, but they may enhance your life.