A very interesting species of agate from the US, Prudent Man. It has a special shrubby texture in shades of mint green, beige, brown and white. Similar to butterfly wings.

Cut in here. (It is possible to drill through it on order - type of drilling on the hull)

This kind of agate is extremely reassuring, combining man back with nature, and it is definitely the ideal stone for meditation and also for being in a stressful environment, especially in corporate offices that are far away from nature and nature.