This is 99% pure Crystalline THCA. If you don't already know, it's an isolate in crystalline form made through a separation process that creates an almost pure compound.
It can be used in many forms as one of the most powerful anti-inflammatory compounds on the planet. And it can get you high! In this picture, it is not active and needs to be heated in order to become psychoactive.
Crystalline THCA is a healing time bomb just waiting to go off.