This stunningly beautiful Russian Amazonite Sphere is very large, measuring about 320 mm in circumference AKA 100 mm in diameter. It is heavy, weighing about 3.18 pounds, and is an absolutely amazing specimen. Amazonite is known as the singers stone. They say it is good for the throat chakra, singing, public speaking, communication, and leadership. I am a beatboxer so you know I love it. This is actually my personal stone so snag it before I decided to keep it for another few years lol. Happy hunting.