Approximately 3"
Technically Moss Agate is a member of the Chalcedony family which is where the translucency comes from in some of these stones. That is the Chalcedony showing up, which is considered very valuable and desirable! When I need a boost of abundance (more of something) I instinctively reach for Moss Agate and carry it with me all day long, and then at night, nestle it under my pillow to enhance my creation dreams. The vugs in these stones are windows to the soul of the stone. I use them to store my dreams, ambitions and sorrows to be transformed. Green Moss Agate is the premier stone of creating more, like Mother Nature who seems to overreach when creating seeds (thousands and thousands instead of just one)!