Amazonite is one of the better sensitivity buffering stones out there, which comes from the feldspar family, so I consider it to be like a Blue Moonstone. It's blue/green coloring tickles both the heart and throat chakras and, as such, it tends to be very cooling and soothing to an overstimulated or overworked system.
The graphic like pattern is not smoky quartz, as with graphic amazonite. It may be black tourmaline or biotite, or something like that... but it sure looks like some kind of symbol or writing. Weird, eh? Looks like a Reiki symbol.
This sphere measures approximately 2 3/8" and weighs approximately .65 lbs. The stand is not included.