mineral- large freeform smokey quartz points. It has some chips from being mined shown in photos. If it didn't have chips this beautiful large formation would be $600+
First 3 photos are taken with light behind it to show clarity. Rest are done in natural daylight.
treatment- purchased as natural but I believe it has has been heat treated but not irradiated
weight 1.6kg Measurements seen in last 2 photos