that powder shake was probably from buds. In COl you say, a med state so they probably do what we do here in cali. When a disp puts weed in jars after picking and weighing and moving it around some of the buds break up and turn to shake. The disp cant sell it as bud anymore so they just throw it in a large jar and call it shake. Its usually a mix of ground buds and sugar trim but mainly bud. This stuff is then ususally rolled up and sold as pre-rolls $5-10 or by the ounce 60-100 depending on the establishment and quality. hope I was able to answer your Q.