This Smoky Citrine is natural, not heat treated, and mined in Brazil. With a golden brown hue it can be categorised as a silicon dioxide halfway between Citrine and Smoky Quartz.
You will be buying 6 pieces of Smoky Citrine ranging from 4.6cm to 6cm as a bulk bundle weighing 256g at $57.60 (average $9.60 each).